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《数学课程标准》要求学生学有价值的知识、实用性的知识,促使学生发展,提高课堂教学的有效性。数学课堂教学的有效性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,既关注学生当前的发展,又关注学生未来的发展、可持续发展。有效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。有效教学是教师遵循教学活动的客观规律,以尽量少的时间、精力和物力投入,取得尽可能好的教学效果。教师教学时既不能跟着感觉走,又不能简单地
“Mathematics curriculum standards” require students to learn valuable knowledge, practical knowledge, to promote student development, improve the effectiveness of classroom teaching. The effectiveness of mathematics classroom teaching refers to the mathematics classroom teaching activities that enable students to improve, progress and gain in mathematics. They not only pay attention to the current development of students, but also pay attention to the students’ future development and sustainable development. Effective classroom teaching is through classroom teaching activities, so that students have both cognitive and emotional development. Effective teaching is an objective law that teachers follow the teaching activities. With as little time, energy and material resources as possible, teaching is as good as possible. Teachers can neither follow the teaching of teaching, they can not simply