“图形与几何”(测量)领域的练习课设计,除了让学生掌握“四基”外,更为重要的是通过练习培养学生的几何直观能力,发展学生的空间观念。学会用图形思考、想象问题是研究数学,也是学习数学的基本能力,这种能力的培养要贯穿于数学教学的全过程,而练习课则是一个重要的战场。 In addition to letting students master the “Four Basics”, the design of practice classes in the areas of “Graphics and Geometry” (measurement) is more important in developing students ’spatial concepts by practicing the cultivation of students’ geometric intuition. Learn to use graphical thinking, imagination is the study of mathematics, but also the basic ability to learn mathematics, this ability to train throughout the entire process of teaching mathematics, and practice class is an important battlefield.