The purpose of this research is to investigate how university students in the faculty of education perceive mistakes made by elementary school students. In the research method, a researcher gave the following tests to university students in the faculty of education. 1) Predict elementary school students' mistakes. 2) Thinking about how to teach elementary school students when they make mistakes. The results revealed two things: 1) By learning examples of children's incorrect answers, university students
were able to concretely predict children's incorrect answers.; 2) University students thought of teaching methods that matched the way children thought.
