教育实践学认为,数学学科形成发展的过程,就是不断实践探索、不断丰富发展、不断补充完善的前进过程,实践性、发展性是数学学科所具有的根本特性之一.初中生是学习活动的直接参与者,其学习数学知识内容要义和探析解决问题策略的进程中,需要通过自己的“脑力劳动”和“体力劳动”进行有效的理解和掌握.教育学家刘和生就数学学科教学中,培养学生的动手实践能力明确指出:“要放大数学学科体系的实践探索性,将学生置于探索数学知识奥秘,探寻数学解题精髓的探究实践活动中,让学生在动手操作中有效思考,在思考探析中提升素养.”教学实践证明,学生学 Educational practice thinks that the process of formation and development of mathematics disciplines is one of the fundamental characteristics of mathematics that is constantly practiced and explored, enriched and constantly supplemented and perfected. Practical education and development are one of the fundamental characteristics of mathematics. In the process of learning the essence of mathematical knowledge and exploring and solving problems and strategies, the direct participants need to effectively understand and master through their own “mental labor” and “physical labor.” The educator Liu He-sheng In teaching, cultivating students’ hands-on ability makes it clear that: “To enlarge the practical exploration of mathematical disciplinary system, students should be placed in the exploratory practice of exploring the mysteries of mathematical knowledge and exploring the essence of mathematical solving problems, Effective thinking, raising literacy in thinking. ”Teaching practice proved that students learn