“学生的数学学习活动应当是一个生动活泼的、主动和富有个性的过程。”教材和教师应“向学生提供充分从事数学活动的机会,帮助他们在自主探索和合作交流的过程中真正理解和掌握基本的数学知识与技能、数学思想和方法,获得广泛的数学活动的经验。”根据《课标》的要求,小学数学 “Students' math learning activities should be a lively, proactive and individualized process.” Textbooks and teachers should “provide students with the opportunity to fully engage in math activities to help them truly understand and cooperate in their own exploration and cooperation Master the basic mathematical knowledge and skills, mathematical ideas and methods, access to a wide range of experience in mathematics activities. ”According to the“ standard ”requirements, primary school mathematics