为了提高初中数学课堂教学质量,不少地市开展了数学优质课评选和教改实验的观摩活动。如何评选一节数学课的优劣,是摆在我们面前的一个现实课题。 学生是主体,教师是主导。教师的“教”是为学生的“学”服务的。要发挥学生的主体作用,让学生自己动脑,动口,动手去学习知识,练习技能。因此,教学中应注意向学生提供观摩、尝试、操作、思考、猜想、归纳、验证等机会。教和学是 In order to improve the quality of mathematics teaching in junior high schools, many local cities have carried out observation and selection activities for mathematics quality class selection and teaching reform experiments. How to determine the merits and demerits of a math lesson is a realistic topic before us. Students are the main body and teachers are the main players. The teacher’s “teaching” serves students’ “learning”. To give play to the main role of students, students should use their brains, verbosity and hands to learn knowledge and practice skills. Therefore, teaching should pay attention to providing opportunities for students to observe, try, operate, think, guess, conclude, and verify. Teaching and learning is