Make an Update: Take one aspect of big data in education. How does it work? What are its effects?

One of the most important aspects of big data in education is that big data can help teachers to more efficiently improve their students' overall performance in different subjects. Currently, the only criteria for measuring student performance are responses to homework and tests. However,  with the help of big data in education, student behavior can be monitored, such as how long it takes them to answer questions, what resources they use to prepare for the exam, and what questions they can and cannot handle. These and similar questions can be answered automatically and instantly, providing instant and unique feedback to every student, thus improving students' overall performance.