In this paper, I shall introduce examples that if geometric problems which were already solved by the previous lessons are used to teach(learn) characteristics or applications of new content(problem-solving tools), both the basic properties of the new...
In this paper, I shall introduce examples that if geometric problems which were already solved by the previous lessons are used to teach(learn) characteristics or applications of new content(problem-solving tools), both the basic properties of the new problem-solving tools and the own characteristics of the new tools are more easily understood.
From this, we see that geometric problems which have various solving methods are important and useful in secondary school mathematics.