度量角的大小是小学阶段学生必须掌握的一种基本的操作技能。在日常教学中,学生需要掌握的基本操作技能教学往往都是通过教师讲解、演示、示范操作的基本程序和步骤,再由学生模仿操作并进行强化练习。这样的技能教学过程容易降低学生的思维水平,因为在操作中缺少思考与探究,更缺少猜想与创造。如何让数学技能的教学更厚重些,而不是理 The size of the measurement angle is a basic operational skill that elementary students must master. In daily teaching, students need to master the basic skills of teaching are often through teachers to explain, demonstrate, demonstrate the basic procedures and procedures for the operation, and then by the students to imitate the operation and intensive practice. Such skills teaching process easily reduce the level of thinking of students, because the lack of thinking and exploration in the operation, the lack of guesswork and creativity. How to make mathematics teaching more serious, rather than rational