《数学课程标准》指出:“数学学习的内容应当是现实的、有意义的、富有挑战性的,这些内容要有利于学生主动地进行观察、实验、猜测、验证、推理与交流等教学活动。”并指出:“动手实践、自主探索和合作交流是学生学习教学的重要方式。”这就要求我们的数学教学,在内容和形式上都要在原有基础上有一个很大的转变。应 The standard of mathematics curriculum states: “The content of mathematics learning should be realistic, meaningful and challenging. These contents should be conducive to teaching activities such as observation, experiment, guesswork, verification, reasoning and exchange. ”And pointed out:“ Hands-on practice, independent exploration and cooperation and exchange is an important way for students to learn teaching. ”This requires that our mathematics teaching, content and form must be based on the original have a big change. should