《义务教育数学课程标准》明确指出,有效的数学学习活动不能单纯地依赖模仿与记忆;动手实践、自主探索与合作交流是学生学习数学的重要方式。可见有效的数学学习,是学生的一种自主的、探索性的、合作研究性的学习,是建立在学生已有经验的基础上的一种以学生为主体的活动。作为课堂教学的引导者——教师,应该向学生提供数学学习的机会,帮助他们在自主探索、合作交流中,真正理解和掌握基本的数学知识和技能,数学思想和方法,获得广泛的数学经验。因此,要想实现有效学习,课堂教学中应该做到以下几点: “Compulsory education mathematics curriculum standards” clearly pointed out that effective learning activities can not simply rely on imitation and memory; hands-on practice, independent exploration and cooperation and exchange is an important way for students to learn mathematics. It can be seen that effective mathematical learning is an autonomous, exploratory and cooperative study of students ’learning. It is a student-centered activity based on the students’ existing experiences. As a guide teacher in classroom teaching, students should be provided with the opportunity to learn mathematics, to help them understand and master basic mathematics knowledge and skills, mathematical ideas and methods, and gain extensive mathematical experience in their own exploration, cooperation and exchange. . Therefore, in order to achieve effective learning, classroom teaching should do the following: