Abstract
In this paper, I clarified the relationship among the power to analyze the teaching contents, the power to construct the teaching plan and the power to practice the trial lesson. I took the students of mathematics department in university of education as the object of study. I measured the power to analyze the teaching contents using the test. I measured the power to construct the teaching plan using the teaching plan made by student. I measured power to practice the trial lesson observing a trial lesson practiced by student. The results of analysis were as follows: - All of the students' the power to analyze the teaching contents, the power to construct the teaching plan, and the power to practice the trial lesson are low. Those were about 30 to 40%, when it converted by percentage. - The students' power to practice the trial lesson has strong relationship with the power to analyze the teaching contents. But the students' power to practice the trial lesson has no relationship with the power to construct the teaching plan. - The student with high power to analyze the teaching contents has the tendency for the power to practice the trial lesson to be also high.