新课程标准提出:学生的数学学习活动不能只限于接受、记忆、模仿和练习,还应倡导自主探索、动手实践、合作交流、阅读自学等学习数学的方式。这些方式有助于发展学生学习的主动性,使学生的学习过程成为在教师指导下的“再创造”过程。 The new curriculum standard proposes that students’ mathematics learning activities can not be limited to acceptance, memory, imitation and practice, but also advocate self-exploration, hands-on practice, cooperation and exchange, reading self-study and other ways to learn mathematics. These ways help to develop the initiative of student learning and make the learning process of students become the process of “re-creation” under the guidance of teachers.