《数学课程标准》要求学生学有价值的知识,有实用性的知识,促使学生的发展,提高课堂教学的有效性。数学课堂教学的有效性是指通过数学课堂教学活动,使学生在数学上有提高,有进步,有收获。它既关注学生当前的发展,又关注学生未来的,可持续发展。有效的课堂教学是通过课堂教学活动,让学生在认知和情感上均有所发展。为此,我从以下几个方面谈课堂 “Mathematics curriculum standards” require students to learn valuable knowledge, practical knowledge, to promote the development of students and improve the effectiveness of classroom teaching. The effectiveness of mathematics classroom teaching refers to the mathematics classroom teaching activities that enable students to improve mathematics, progress, harvest. It not only pays attention to students ’current development, but also pays attention to students’ future and sustainable development. Effective classroom teaching is through classroom teaching activities, so that students have both cognitive and emotional development. To this end, I talk about the classroom from the following aspects