众所周知,数学这一学科具有高度的抽象性、严密的逻辑性以及广泛的应用性,而这些特点也就使得数学成为了名副其实的思维训练工具。因此,应在教学过程中对学生进行“说”的培养。培养的主要目的是为了促进学生思维能力的发展;训练的重点则是要求“说”得完整而又准确、层次分明、条理清晰,而并不是力求具 It is well-known that the discipline of mathematics has a high degree of abstraction, strict logic and extensive applicability, and these characteristics make mathematics a veritable thinking training tool. Therefore, students should be taught in the teaching process. The main purpose of training is to promote the development of students’ thinking skills. The emphasis of training is to require that “” be "complete and accurate, well-structured and clear-cut,