初中阶段的图形教学,作为学生新接触的知识,存在一定的难度。在数学教学中,教师讲解三角形的性质及其面积计算的有关知识,运用趣味教学的方法,结合教材,可以使学生更清晰、容易地接受三角形的相关知识。 Graphics teaching in junior high school, as students new knowledge, there is a certain degree of difficulty. In mathematics teaching, teachers explain the nature of the triangle and its area calculation of knowledge, the use of interesting teaching methods, combined with textbooks, students can make a clearer and easier to accept the knowledge of the triangle.