Students investigate the role that animal senses, primarily vision, play in survival as they try to understand a realistic fictional problem with a real organism. They investigate why there is a decline in the number of Tokay geckos living in one area of a rain forest in the Philippines. Humans change the environments in which we live in many ways—clearing forests to make roads and build houses, removing species of plants and animals that are dangerous to humans, installing lights to make it easier to see at night, and so on. Often these changes affect other species’ survival in unanticipated ways.
environment, function, investigate, observe, predator, prey, sense, structure, survive, variable, vision
Overall Purpose
The purpose of the learning module is to help students to investigate the role that animal senses, primarily vision, play in survival. Students try to understand the reason for the decline in the Tokay gecko population in a rain forest that has been cleared for roads that are lit during night hours. Students use digital simulation, read informational text, evaluate models, and write about their thinking. The module is intended for a 4th grade class.
Prior knowledge
Students are expected to have had many everyday experiences using their senses to see, smell, hear, taste, and touch. Students are likely to understand that animals need to find food and avoid being eaten to survive in their environment.
Students have learned to use the Claim-Evidence-Reasoning (CER) format to explain their thinking.
Students have been trained in the RISE Meaningful Feedback Model.
Learning Design:
The learning module will take approximately two and a half weeks to complete. The teacher can adjust the timeline according to the needs of the students. The module will be delivered through synchronized sessions. The author of the module has taught elements of this module previously but has not delivered the whole unit because of a lack of time.
Pedagogy: The learning module uses the four Knowledge Processes experiencing, conceptualizing, applying, and analyzing developed by the Learning by Design pedagogy. Students will share knowledge through posts and updates in order to learn from each other. Through peer interactions and teacher guided discussions, Vygotsky's concept of the zone of proximal development (ZPD) is utilized in the design of the module (Vygotsky, 1978).
Structure: The structure below will be used for student lessons and the teacher directions for each session.
Learner's structure that appears on the left side of module:
Teacher's structure that appears on the right side of module:
We’re about to begin a new science unit during which we’ll be learning about how animals survive in their environment. You will take on the role of a conservationist biologist.
Conservation biology is the branch of biology focused on learning how to manage Earth’s biodiversity, and protect (and restore) species and their ecosystems from various causes of destruction or extinction. Conservationists carry out ecosystem protections and restorations, according to sound science. There are many conservation groups as well as government efforts worldwide aimed at studying and protecting threatened species and habitats. One of the goals of conservation is not to increase the numbers of all organisms in an ecosystem, but to maintain healthy numbers of the various organisms throughout an ecosystem. This might mean taking steps to decrease certain populations, like invasive (non-native) species or other species that are harming other species by using too many of the ecosystem’s natural resources or causing other damages.
Your class will receive messages from the Rain Forest Conservation Group, which needs our help with a problem they are trying to solve. Since placing a well-lit highway close to forest habitat, there has been a decrease in the population of Tokay geckos that live in the surrounding trees. Can you help solve the mystery of why?
Next Generation Science Standards
Common Core State Standards for English Language Arts
Complete the survey
Take this survey. You will take it again at the end of the module. Please answer the questions as honestly as you can. Click here for the survey.
Key Concepts:
Think About It!
In your science notebook: Analyze the image using the questions below.
Explore
Part 1: Your role as a conversation Biologists.
The Rain Forest Conservation Group has contacted us because there’s a problem with this animal in this area of the rainforest. There are fewer Tokay geckos than there used to be, and people are wondering why this happened. They are worried that something is making it hard for the geckos to survive.
According to the message, the Tokay gecko lives in rainforests. Use Google Maps to find the locations of rainforests around the world.
Zoom into the Philippine Islands. Tokay geckos are a type of lizard found in the rain forests there. What do you know about rainforests?
For the next few weeks, you will take on the role of conservation biologists. You will work to figure out why there are fewer Tokay geckos in this area of the rainforest.
The word conservation means saving or protecting. A conservation biologist is someone who works to protect plants and animals in an environment. These conservation biologists are studying plants and animals in an environment in order to see if they are healthy.
One thing conservation biologists do is count the numbers of plants and animals in an area. If there are fewer plants or animals than usual, they learn more about those plants or animals to try to figure out why they are not surviving as well as they used to. If this seems like a problem for the environment, they work to find a solution that will allow more of those plants or animals to survive.
The message that the Rain Forest Conservation Group sent to us mentioned that the geckos might be having trouble surviving in their environment. As you work in your role as conservation biologists, you’ll investigate what could be making it hard for the geckos to survive. Eventually, you’ll share your findings with the Rain Forest Conservation Group.
Before we can figure out what could be making it hard for the Tokay geckos to survive in their environment, we need to think about what it means for something to survive
Animals need food, water, and a way to stay safe from other animals who may try to eat them. In order to find these things, they need to get information from their environment—where their food is, where they can hide, and what other animals are nearby. But, how do animals get this information?
Part 2: Investigating Animal Senses
Before reading the book, Investigating Animal Senses, read the sentences below. Copy the statements into your notebook. If you agree with the sentence, write an “A” on the line before the sentence. If you disagree with the sentence, write a “D” on the line before the sentence.
________Only scientists do science investigations.
________ When scientists investigate, they start with a question and then think of ways to test out some possible answers.
________ Hearing, vision, and taste are the three senses that animals use.
________ Vision is the best sense that animals can use to learn about their environment.
________ When you do an investigation, you should change only one thing at a time.
Read Investigating Animal Senses. In this book, there are students just like you who investigate how animals use their senses to get information from the environment. Scientists do investigations, too—they try to find out answers to questions about the natural world.
Ms. Tuxhorn. (2020c, January 6). Handbook of Animal Eyes Book [Video]. YouTube. https://www.youtube.com/watch?v=cKepGFPspdc
Communicate
Post: Pick one to post
After reading the book, which of your ideas have changed. Explain your thinking in a post. If your ideas remained the same, explain how the book supported your ideas.
Or
Choose an animal that the students investigated in the book and answer the questions below.
Create an Update 1
In this unit, you will focus on how animals learn about their environment and how this helps them survive, and we will study this as conservation biologists.
You will reflect on what you might already understand about these ideas. You will write about how a bird gets information from its environment, specifically about where its food is in its environment.
Reply
Comment on a classmate's update with your thoughts about their ideas. Do you agree/disagree, and why? Begin your post with @Name, so that your peer knows you are commenting on his or her comment.
Knowledge Process/Learning Outcomes
Purpose:
Part 1 Purpose: To introduce the unit and allow students to demonstrate their current understanding of how animals use their senses, particularly vision, to survive
Part 2 Purpose: For the class to construct the concept that sound and scent carry information about the environment and that animals have structures whose function is to get this information.
Students learn:
Part 1:
Part 2:
Next Generation Science Standards (NGSS) 3-D Statement
Part 1: Students communicate their initial ideas about how animals use their senses to survive (structure and function).
Part 2: Students communicate their initial ideas about how animals use their senses to survive (structure and function).
NGSS Disciplinary Core Ideas
LS1.A: Structure and Function:
Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction. (4-LS1-1)
LS1.D: Information Processing:
Different sense receptors are specialized for particular kinds of information, which may be then processed by the animal’s brain. Animals are able to use their perceptions and memories to guide their actions. (4-LS1-2)
LS1.A: Structure and Function:
Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction. (4-LS1-1)
LS1.D: Information Processing:
Different sense receptors are specialized for particular kinds of information, which may be then processed by the animal’s brain. Animals are able to use their perceptions and memories to guide their actions. (4-LS1-2)
Common Core State Standards for English Language Arts (CCSS-ELA)
CCSS.ELA-LITERACY.RI.4.7: Interpret information presented visually, orally, or quantitatively (e.g., in charts, graphs, diagrams, time lines, animations, or interactive elements on Web pages) and explain how the information contributes to an understanding of the text in which it appears.
CCSS.ELA-LITERACY.W.4.2: Write informative/explanatory texts to examine a topic and convey ideas and information clearly.
Duration
The lesson will take two 60 minute class period to complete.
Resources
Teaching Tip
Students will take a survey to assess their knowledge of the ideas taught in this module. Students will again take the survey at the end of the unit to help you assess their growth.
Before the Lesson : Write on the whiteboard- How do animals use their senses to get information about their environment?
Introduce the unit by saying:
We’re about to begin a new science unit during which we’ll be learning about how animals survive in their environment. We’ve received a message from the Rain Forest Conservation Group, which needs our help with a problem they are trying to solve.
During the lesson
In Part 1 discuss ideas below:
Key Concepts:
Think About It!
In your science notebook reflect on: Do you think all animals hear, smell, and see in the same way? Why or why not? Make a drawing to help you explain your thinking. Label your drawing.
Explore
Part 1: Animal & Plant Senses
In the past update, we have been investigating the question How do animals use their senses to get information about their environment? Yesterday we read about some of the different structures that animals use to get information about their environment. How do some of the animals you read about in the book get information from their environment?
As you watch the videos, think about how each animal or plants gets information from its environment. What structures are they using? What kind of information do they get? How can they use that information to survive?
Animal and Plant Senses Videos
Part 2: Group Work
You will explore a mystery box today with your group in class.
We are going to use a Mystery Box to help us understand more about vision and how it can help an animal get information about its environment. I’d like you to imagine that your food is inside this box. As you work with your box, reflect on what you need in order to get information about what is inside—what color the food is, what shape it is in, or how much of it there is. Thinking about what you need in order to see your food may help you to understand what other animals need in order to see the food they need to survive.
When it is your turn, look through the eyehole of the Mystery Box. What do you see? The boxes must stay flat on a table at all times. Write or draw what you see.
With your group, decide what one thing you will change about the Mystery Box so that you can see what is inside. Make this change, and then look through the hole to find out if you can see what is inside.
Communicate
Post
Write a post on one of the videos answering the questions below:
For the animal videos:
For the plant video:
Create an Update 2
You’ve been learning about how animals use their senses to help them survive. Understanding this might give you a clue as to why the Tokay geckos are having trouble surviving. In an update write about your ideas about how senses can help animals get information about their environment and help them survive.
Reply
Comment on a classmate's update with your thoughts about their ideas. Do you agree/disagree, and why? Begin your post with @Name, so that your peer knows you are commenting on his or her comment.
Knowledge Process/Learning Outcomes
Purpose:
Students learn:
Part 1: Animals and plants have different structures that allow them to get information from their environment, which helps them survive.
Plants have different structures that allow them to grow and reproduce.
Part 2: Light can carry information about the environment to an animal.
Next Generation Science Standards 3-D Statement
Part 1: Students obtain information from several videos showing animals sensing their environment by using specialized structures (structure and function).
Part 2: Students use a model to explore the effect of light on vision (cause and effect).
NGSS Disciplinary Core Ideas
LS1.A: Structure and Function:
Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction. (4-LS1-1)
LS1.D: Information Processing:
Different sense receptors are specialized for particular kinds of information, which may be then processed by the animal’s brain. Animals are able to use their perceptions and memories to guide their actions. (4-LS1-2)
PS4.B: Electromagnetic Radiation:
An object can be seen when light reflected from its surface enters the eyes. (4-PS4-2)
Common Core State Standards for English Language Arts (CCSS-ELA)
CCSS.ELA-LITERACY.RI.4.7: Interpret information presented visually, orally, or quantitatively (e.g., in charts, graphs, diagrams, time lines, animations, or interactive elements on Web pages) and explain how the information contributes to an understanding of the text in which it appears.
CCSS.ELA-LITERACY.W.4.4: Produce clear and coherent writing in which the development and organization are appropriate to task, purpose, and audience.
Duration
The lesson will take one 60 min class period to complete.
Resources
Science Notebook
For Each Group of Four Students
Teaching Tip
Before the Day of the Lesson-Prepare one Mystery Box for each group of four students (you will need for each group a box, binder clips, and tape).
Assemble the box, taping if necessary.
Place the binder clip in the center of the inside of the box. Tape the binder clip in this position so that it stays in place when the box is moved.
Using the box cutter, cut an eye hole that is about 1” in diameter in one side of the box. (Note: The box cutter should only be used by the teacher; students should not cut the holes.)
Close each box, but do not tape the top closed. Make sure that no light is getting in the box with the top closed and that when you look through the eye hole you cannot see the object inside. If any tiny holes are letting in light, close them using black paper or any opaque tape.
Open the lid of the completed box as you look through the eye hole to test that you can see the object once there is light inside the box. When the box is closed, you should not be able to see anything inside of it.
Immediately Before the Lesson-Write the Investigation Question on the board. “How do animals use their senses to get information about their environment?”
Write the reflection questions for the Animal Sense videos on the board:
“How did the animal get information about what was in its environment?”
“What structure did it use?”
“How did the information from the environment get to the animal?”
“How will the animal use that information to survive?”
Further questions you can ask in class-
The antelopes ran away when they heard their predator. If an antelope couldn’t hear well, how could this antelope know when there is a predator nearby?
The raccoon was using its paws to feel for food in the water. If a raccoon couldn’t feel things well, how could this raccoon find its food?
In a separate section of your board, write the reflection questions for the Plant video:
“How did the plants get information about what was in its environment?”
“How will the plants use that information to survive?”
As students are investigating the videos call a group up one at a time to see inside of the box. Let students notice that without light they are unable to see inside the box but with some light they are able to see inside in the box.
During the lesson: Designate groups and distribute boxes.
Have students take turns trying to see what’s in the box without touching it.
As they wait for the other group members to look into the box, students should answer Part 1 in their notebooks.
Once students have all taken a turn looking into their group's box, let the class know that they may proceed to Part 2 in their notebooks.
As students work, circulate to provide support as needed.
Have students reflect on their mystery box experience.
Assessment of Update 2
Informally assess students' understanding of how animals use their senses to get information about their environment. At this point in the unit, students should be able to demonstrate their understanding that scent and sound carry information from the environment and that animals have sensory structures, such as a nose and ears, to receive that information. Students should be able to make the connection that being able to receive such information is necessary to fulfill the animal’s various needs for survival. Students should be able to identify the different ways in which animals gather information about their environment using different sensory structures. If students are not identifying various senses, redirect them to the videos and ask them to seek evidence to support their thinking. Alternatively, you can lead a discussion to review each sense—what it does and what structures are involved.
Key Vocabulary
Think About It!
In your science notebook reflect on: Think of a time when you had trouble seeing something. What did you have trouble seeing? What did you do to see it better? Make a drawing to help you explain your thinking. Label your drawing.
Explore
We are not able to investigate animals use light in the classroom.
Use the online simulation to see how the eye of a predator helps them see their prey.
5. Open the Sim in Recognizing Prey mode.
6. Adjust the light so the predator can see its prey.
7. Observe what happens after the light gets to the predator’s eye.
8. In your notebook, draw a sketch of the image below from the SIM and match the label on the diagram below with the statement that describes what happens at each of the body structures when the predator is able to see its prey.
9. Watch the video How the Eye Works
National Eye Institute, NIH. (2016, February 3). The Visual System: How Your Eyes Work [Video]. YouTube. https://www.youtube.com/watch?v=i3_n3Ibfn1c
10. Learn more about your eyes
Communicate
Post
Explore the handbook about animal eyes. Read about several of the animals. Pick one animal you read about. Share what you have learned about the way their eye works.
Ms. Tuxhorn. (2020c, January 6). Handbook of Animal Eyes Book [Video]. YouTube. https://www.youtube.com/watch?v=cKepGFPspdc
Create Update 3
Now that you’ve read about an animal’s eye, what new ideas do you have about the body structures you’re observing in the Sim? What function do these structures serve?
Reply
Comment on a classmate's update with your thoughts about their ideas. Do you agree/disagree, and why? Begin your post with @Name, so that your peer knows you are commenting on his or her comment.
Knowledge Process/Learning Outcomes
Purpose: For students to familiarize themselves with various structures that are key to animal vision and to begin investigating the role of light in animal vision. Lesson purpose: For students to begin to understand how various structures in an animal’s eye and brain function
Students learn:
Next Generation Science Standards (NGSS) 3-D Statement
Students use a digital model to investigate how light allows a predator to see its prey (cause and effect, structure and function).
NGSS Disciplinary Core Ideas
LS1.A: Structure and Function:
Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction. (4-LS1-1)
PS4.B: Electromagnetic Radiation:
An object can be seen when light reflected from its surface enters the eyes. (4-PS4-2)
Common Core State Standards for English Language Arts (CCSS-ELA)
CCSS.ELA-LITERACY.RI.4.1: Refer to details and examples in a text when explaining what the text says explicitly and when drawing inferences from the text.
CCSS.ELA-LITERACY.W.4.2.D: Use precise language and domain-specific vocabulary to inform about or explain the topic.
Duration
The lesson will take one 60 min class period to complete.
Resources
Science Notebook
Teaching Tip
Write the Investigation Question on the board. Write “How does light allow an animal to see something?”
Post question on the classroom wall and lead a discussion to leverage prior knowledge and experiences. Read it aloud.
As students are working on Sim, you can pose questions as you are walking around the room.
Key Concepts:
Think About It!
In your science notebook reflect on: What are some examples of light sources in your home? Is there a place in your home that is completely dark? How do you know? Make a drawing to help you explain your thinking. Label your drawing.
Explore
Part 1- I See What You Mean:
As conservation biologists, you are trying to figure out how light allows a Tokay gecko to find its prey. If you figure that out, you can help the Rain Forest Conservation Group understand why the geckos are not finding their prey and, therefore, not surviving.
Today you will also be reading a book titled, I See What You Mean. This is a book about two kids who are trying to figure out how light allows them see objects. Before reading the book I See What You Mean, read the sentences below. Copy the statements into your notebook. If you agree with the sentence, write an “A” on the line before the sentence. If you disagree with the sentence, write a “D” on the line before the sentence. After you read the book, see if your ideas have changed. Be ready to explain your thinking.
________ All light stops when it reaches an object.
________ Light comes from a source and then floats around.
________ Only shiny things, like spoons and mirrors, reflect light.
________ We see because light reflects off objects and travels to our eyes.
________ Light carries information about objects, such as what color and shape they are.
Answer the questions below in your notebook as you read I See What You Mean.
Ms. Tuxhorn. (2020d, January 6). I See What You Mean Book [Video]. YouTube. https://www.youtube.com/watch?v=U9MBUr9hb3U&t=342s
Part 2- SIM Exploration:
Use the simulation to explore what factors impacts an animal's ability to see their prey. In the Sim, you can change the
Why would it be important to change one variable at a time in the simulation?
Communicate
Post
Reflect on SIM learning: Now that you know a little more about how light allows animals to see objects, such as prey, you are going to look closely at a few models that show different ideas about how light can allow animals to see things.
Use the images above to describe the predator's ability and inability to see its prey. Include a description of the three variables that have changed from the first image to the second.
Create Update 4
As conservation biologists, you are working to figure out how light allows animals to see something. Read the statements below:
Both of these statements describe when an animal can see its prey, but neither statement is true all the time. In your notebook write about: What makes these statements true? Under what circumstances makes them false? Consider the amount of light, the direction of light, and the pupil size.
Reply
Comment on a classmate's update with your thoughts about their ideas. Do you agree/disagree, and why? Begin your post with @Name, so that your peer knows you are commenting on his or her comment.
Knowledge Process/Learning Outcomes
Purpose: For students to model their emerging ideas about how light allows an animal to see something
Students learn:
Next Generation Science Standards (NGSS) 3-D Statement
Students first use a model to investigate the path of light from a source to an animal’s eyes (structure and function) and then evaluate three models and describe what is wrong about each one.
NGSS Disciplinary Core Ideas
LS1.D: Information Processing:
Different sense receptors are specialized for particular kinds of information, which may be then processed by the animal’s brain. Animals are able to use their perceptions and memories to guide their actions. (4-LS1-2)
PS4.B: Electromagnetic Radiation:
An object can be seen when light reflected from its surface enters the eyes. (4-PS4-2)
Common Core State Standards for English Language Arts (CCSS-ELA)
CCSS.ELA-LITERACY.RI.4.1: Refer to details and examples in a text when explaining what the text says explicitly and when drawing inferences from the text.
CCSS.ELA-LITERACY.W.4.2.D: Use precise language and domain-specific vocabulary to inform about or explain the topic
Duration
The lesson will take two 60 min class period to complete.
Resources
Science Notebook
Teaching Tip
Before the Lesson: Write the Investigation Question on the board. If the Investigation Question from Lesson 2.1 was erased, rewrite “How does light allow an animal to see something?”
Students use the Vision and Light Simulation to further investigate how light allows an animal to see an object. This activity provides an opportunity for students to change a variable in the Sim and for the teacher to demonstrate the importance of changing one variable at a time.
Critiquing Models with Evidence: Students are presented with three inaccurate models about how light allows animals to see things. Refuting these inaccurate ideas allows students to demonstrate their understanding of how light actually allows an animal to see something.
Key Concepts:
Light needs to reflect off an object and get to the eye for an animal to see the object.
Think About It!
In your science notebook reflect on: Why might it be important to change only one thing at a time when doing an investigation? Make a drawing to help you explain your thinking. Label your drawing.
Explore
Part 1: Below is a model of a predator and prey.
Below I have documented my thinking that helps me to evaluate Model 1. Notice I added the two circles to help clarify my thinking.
Partner Work: Discuss with a partner suggestion for improvements on this model.
If I were to make changes to improve this model, I might make it show a different angle of light so that the light reflects differently off the rabbit. I might also make it show the light reflecting off the rabbit so that it gets into the coyote’s eyes because otherwise, the coyote wouldn’t be able to see the rabbit.
A different way I could revise this model, if I didn’t want to change those things, would be to just show the coyote’s thought bubble with no image of the rabbit inside. If the light is not reflecting off the rabbit to the coyote’s eyes, then the coyote wouldn’t see the rabbit.
Part 2-Crow Investigation
Read a book about a scientist who wanted to know how one kind of animal, the crow, knows what it’s looking at. This crow scientist doesn’t investigate how crows recognize their prey—he investigates how crows recognize humans! Questions to consider: How do an animal’s structures allow it to see its prey?
Ms. Tuxhorn. (2020a, January 6). Crow Scientist [Video]. YouTube. https://www.youtube.com/watch?v=Q04J_kuvVJY
Communicate
Post
Choose either Model 2 or Model 3. Write about how your model is incorrect or incomplete. How could you improve the model?
Create Update 5
Write an explanation to the Rain Forest Conservation Group to help answer their question. How does a Tokay gecko know that it is looking at its prey?
Reply
Comment on a classmate's update with your thoughts about their ideas. Do you agree/disagree, and why? Begin your post with @Name, so that your peer knows you are commenting on his or her comment.
Knowledge Process/Learning Outcomes
Purpose: For students to apply their growing understanding of the path of light that is needed for an animal to see an object
Students learn:
Part 1:
Part 2:
Next Generation Science Standards (NGSS) 3-D Statement
Part 1: Students ask questions as they continue to construct their understanding of how light allows an animal to see something (cause and effect, structure and function).
Part 2: Students ask questions as they continue to construct their understanding of how light allows an animal to see something (cause and effect, structure and function).
NGSS Disciplinary Core Ideas
LS1.A: Structure and Function:
Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction. (4-LS1-1)
LS1.D: Information Processing:
Different sense receptors are specialized for particular kinds of information, which may be then processed by the animal’s brain. Animals are able to use their perceptions and memories to guide their actions. (4-LS1-2)
PS4.B: Electromagnetic Radiation:
An object can be seen when light reflected from its surface enters the eyes. (4-PS4-2)
Common Core State Standards for English Language Arts (CCSS-ELA)
CCSS.ELA-LITERACY.RI.4.1: Refer to details and examples in a text when explaining what the text says explicitly and when drawing inferences from the text.
CCSS.ELA-LITERACY.W.4.2.D: Use precise language and domain-specific vocabulary to inform about or explain the topic
Duration
The lesson will take two 60 min class periods to complete.
Resources
Student Notebook
Teaching Tip
Before the Lesson
Write the Investigation Question on the board. If the Investigation Question from Lesson 2.1 was erased, rewrite “How does light allow an animal to see something?”
Critiquing Models with Evidence
Students are presented with three inaccurate models about how light allows animals to see things. Refuting these inaccurate ideas allows students to demonstrate their understanding of how light actually allows an animal to see something
Critiquing Models with Evidence-- STUDENT-TO-STUDENT DISCUSSION
Possible Answers: This model is incorrect or incomplete because . . .
• Model 1: . . . it incorrectly shows the path of light from reflecting off the rabbit does not get into the coyote’s eyes
• Model 2: . . . it incorrectly shows the path of light from the lamp to the coyote’s eyes to the rabbit. Based on this model, the coyote should not be able to see the rabbit.
• Model 3: . . . it doesn’t show what happens to the light after it hits the rabbit. Based on this model, the coyote might be able to see the rabbit, but the model is incomplete.
Possible Answers: In order to show what actually happens when an animal sees an object, I would improve this model by . . .
• Model 1: . . . showing the light shining on the rabbit and then reflecting to the coyote’s eyes. The only way for the coyote to see the rabbit is if the light shines on the rabbit first and then reflects to the coyote’s eyes.
• Model 2: . . . showing the light shining on the rabbit and then reflecting to the coyote’s eyes. The only way for the coyote to see the rabbit is if the light shines on the rabbit first and then reflects to the coyote’s eyes.
• Model 3: . . . showing the light reflecting off the rabbit to the coyote’s eyes. The only way for the coyote to see the rabbit is if the light shines on the rabbit first and then reflects to the coyote’s eyes.
Key Concepts:
Think About It!
We have explored how an animal’s structures allow it to see its prey. In your science notebook reflect on:
Explore
Part 1: You got information about the environment by seeing or hearing it, your brain processing it, and comparing it to memories. You then used the information to decide how to react.
Now you will use the Sorting Tool. With your partner, you’ll put cards in order so they explain how light allows a lizard to see and how the lizard knows what it is seeing.
Part 2: Seeing Like a Shrimp and Smelling Like a Snake
Let’s read to find out more about how animals sense information about their environment in different ways. Before reading the book Seeing Like a Shrimp and Smelling Like a Snake, read the sentences below. Copy the statements into your notebook. If you agree with the sentence, write an “A” on the line before the sentence. If you disagree with the sentence, write a “D” on the line before the sentence. After you read the book, see if your ideas have changed. Be ready to explain your thinking.
________ All animals have similar kinds of receptors.
________ All animals need to see in order to find their prey.
________ A snake can smell with its tongue.
________ Some animals have a better sense of hearing than other animals.
________ Humans have better senses than other animals.
Read the book Seeing Like a Shrimp and Smelling Like a Snake. As you read, think about an animal that has an amazing sense of smell or hearing. How do you know it has an amazing sense of smell or hearing?
Ms. Tuxhorn. (2020e, January 6). Seeing Like a Shrimp and Smelling Like a Snake Book [Video]. YouTube. https://www.youtube.com/watch?v=uxfxA7u8Af0
Communicate
Post: Pick one
After reading the book, which of your ideas have changed. Explain your thinking in a post. If your ideas remained the same, explain how the book supported your ideas.
Or
Choose one animal you read about (star-nosed mole, catfish, fennec fox, snake, or mantis shrimp). Then, return to that section in the book and answer the questions below in your notebook.
Create Update 6
Write to the Rain Forest Conversation Group and answer the question, How do animals know how to react when they get information about their environment? Specifically tell them your thoughts about the Tokay geckos ability to find their prey.
Other questions to consider:
Would the lizard be able to see the prey if the light was not able to get from the prey into the lizard’s eye? Explain why or why not. How do you think the lizard would react to seeing this insect if it had never seen this type of insect before? Why is seeing and recognizing prey important to the lizard’s survival?
Reply
Comment on a classmate's update with your thoughts about their ideas. Do you agree/disagree, and why? Begin your post with @Name, so that your peer knows you are commenting on his or her comment.
Knowledge Process/Learning Outcomes
Purpose:
Part 1: To provide students with experiences that emphasize the role of the brain and memories in animals’ reaction to information about their environment
Pa:rt 2 To introduce students to the idea that animals process information from their environment in different ways and to have students begin to wonder about the role animals’ receptors play in this variation
Students learn:
Part 1: After forming an image, the brain compares the image to memories. Then an animal can make a decision that could help it survive.
Part 2: Animals can react in different ways to the same amount of information from the environment.
Some animals have a more sensitive sense of hearing, touch, smell, taste, or vision, than other animals.
Different animals have different kinds of receptors.
Next Generation Science Standards 3-D Statement
Students use a digital card sort to model their thinking and to reflect on the role of the brain and memories in animals’ reactions to information about their environment (cause and effect, structure and function).
NGSS Disciplinary Core Ideas
LS1.A: Structure and Function:
Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction. (4-LS1-1)
LS1.D: Information Processing:
Different sense receptors are specialized for particular kinds of information, which may be then processed by the animal’s brain. Animals are able to use their perceptions and memories to guide their actions. (4-LS1-2)
PS4.B: Electromagnetic Radiation:
An object can be seen when light reflected from its surface enters the eyes. (4-PS4-2)
Common Core State Standards for English Language Arts (CCSS-ELA)
CCSS.ELA-LITERACY.RI.4.1: Refer to details and examples in a text when explaining what the text says explicitly and when drawing inferences from the text.
CCSS.ELA-LITERACY.W.4.2.D: Use precise language and domain-specific vocabulary to inform about or explain the topic.
Duration
The lesson will take one 60 min class period to complete.
Resources
Science Notebook
Teaching Tip
Before the Lesson: Write the Investigation Question on the board. Write “How do animals know how to react when they get information about their environment?”
During the lesson. Part 2 Have a discussion on how different animals sense information. Some important ideas and questions to discuss related to receptors:
Directions:
Today you will construct an explanation of why more light made it hard for the Tokay gecko to see. You will write your response and share it with a peer. They will evaluate your ability to include all the important parts of a CER and you will also evaluate their work. Your teacher will assign you your partner.
Rubric:
Use the CER Peer Review Rubric to provided feedback
Create Update 7
You will revise your work based on the rubric and post your response.
End-of-Unit Writing: Explaining Why More Light Makes It Harder for a Tokay Gecko to See
Picture 1 shows the Tokay gecko at night before the highway lights were installed.
Picture 2 shows the Tokay gecko at night after the highway lights were installed. The lights are turned on.
Task: Using a CER format, answer How does a Tokay gecko usually see? Why does more light at night make it hard for it to see?
Complete the survey
Take this survey. Please answer the questions as honestly as you can. Click here for the survey.
Assign Peer Reviewer
Assign a peer reviewer to each student. Students can submit a copy of their work in a Google document to be reviewed by their peers. The peer would use the commenting option to provide feedback and rubric.
Assessment
Use the CER Rubric to assess students' final work.
The rubric assesses students’ ability to construct explanations. It is designed to monitor students as they constructing explanations. Students’ explanations (writings and diagrams) should be consistent with the relevant science ideas that they have encountered in the unit.
Notes on Student Response:
Does the explanation go beyond, or add to, what can be observed to explain why more light made it harder for the Tokay gecko to see? Below are possible notes to help with assessments.
Beginning |
The writing does not go beyond or add to, what was observed to explain why more light made it harder for the Tokay gecko to see. Possible feedback: You described the Tokay gecko as being able to see better in low light, but how does a gecko see? Why does the amount of light affect an animal’s ability to see? |
Approaching |
The writing goes beyond describing that Tokay geckos can see without the highway lights but cannot see with them to propose: How light allows geckos to see (e.g., the light carries information to the gecko’s eyes, which send information to the brain where it can be processed). OR Why the amount of light affects whether or not the geckos can see (e.g., if there is too much light, the gecko’s light receptors can respond too much and the brain can’t form a clear image). Possible feedback: You gave a partial explanation (e.g., geckos see when light carries information to their eyes, which send information to the brain where it can be processed), but can you explain more fully why the geckos can’t see (e.g., why more light would make it hard for the geckos to see)?
|
Approaching |
The writing goes beyond describing that Tokay geckos can see without the highway lights but cannot see with them to propose: How light allows geckos to see (e.g., the light carries information to the gecko’s eyes, which send information to the brain where it can be processed). AND Why the amount of light affects whether or not the geckos can see (e.g., if there is too much light, the gecko’s light receptors can respond too much and the brain can’t form a clear image). Possible feedback: Is there anything else that could help someone understand why the Tokay gecko cannot see when the highway lights are there? |
Amplify. (2016, February 11). Amplify | Home. https://amplify.com/
Anderson, K. (2018, January 29). Claim, Evidence, Reasoning (CER): A Writing Strategy to Help Make Connections With Science Concepts and Labs. Model Teaching. https://www.modelteaching.com/education-articles/writing-instruction/claim-evidence-reasoning-cer
Ducksters. (2021a). Biology for Kids: Sight and the Eye. Duksters. https://www.ducksters.com/science/sight_and_the_eye.php
Ducksters. (2021b). Science Quiz: Biology: Sight and the Eye. https://www.ducksters.com/science/quiz/sight_and_the_eye_questions.php
Khan, N. (2021). Vision and Light [Image]. Unpublished Work. The University of Illinois at Urbana Champaign.
Ms. Tuxhorn. (2020a, January 6). Crow Scientist [Video]. YouTube. https://www.youtube.com/watch?v=Q04J_kuvVJY
Ms. Tuxhorn. (2020b, January 6). Handbook of Animal Eyes Book [Video]. YouTube. https://www.youtube.com/watch?v=cKepGFPspdc
Ms. Tuxhorn. (2020d, January 6). I See What You Mean Book [Video]. YouTube. https://www.youtube.com/watch?v=U9MBUr9hb3U&t=342s
Ms. Tuxhorn. (2020e, January 6). Seeing Like a Shrimp and Smelling Like a Snake Book [Video]. YouTube. https://www.youtube.com/watch?v=uxfxA7u8Af0
National Eye Institute, NIH. (2016, February 3). The Visual System: How Your Eyes Work [Video]. YouTube. https://www.youtube.com/watch?v=i3_n3Ibfn1c
Teaching and Learning in Higher Education. (n.d.). RISE Meaningful Feedback Model. Retrieved February 17, 2021, from https://www.queensu.ca/teachingandlearning/modules/assessments/17_s2_09_rise_meaningful_feedback_model.html
Your Amazing Eyes! (2017, February 20). National Geographic Kids. https://uk-origin.natgeokids.com/uk/discover/science/general-science/human-eye/
Vygotskiĭ, L. S., & Cole, M. (1978). Mind in society: The development of higher psychological processes. Cambridge: Harvard University Press.