有效教学是新课程倡导的一种教学理念,“有效”体现在三个层面:基础知识和基本技能是否掌握扎实;数学思维是否得到有效提升;学生是否得到可持续发展。因而要求教师以有效教学为使命,改革备课思路,把课堂当作实施有效教学的阵地。 Effective teaching is a kind of teaching idea advocated by the new curriculum. Effective is reflected in three aspects: whether basic knowledge and basic skills are well mastered; whether mathematical thinking is effectively promoted; and whether students are able to achieve sustainable development. Therefore, teachers are required to use effective teaching as their mission, to reform the thinking of preparing lessons and to regard the classroom as a position for effective teaching.