新课标要求,学生的数学学习内容应当是现实的、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、推理与交流等学习活动.为此,新课标版中学数学课本十分注重从实例出发引入数学问题.然而,如何根据学生所处的实际环境,充分挖掘可以利用的课程资源 The new curriculum standard requires that the students’ mathematics learning content should be realistic, meaningful, and challenging, and these contents should be conducive to the students’ initiative to carry out learning activities such as observation, experimentation, guessing, verification, reasoning, and communication. , New curriculum standard middle school mathematics textbooks attach great importance to the introduction of mathematics problems from the example. However, how to fully tap the available curriculum resources according to the students’ actual environment