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由一道Ｂ组题想到的汝箕沟煤矿中学杨永华义务教育初中数学教材中的习题分成Ａ、Ｂ组题。作为教材的弹性内容．Ｂ组题属于较高的教学要求，如果把这类题作适当变化，对于学生扩大知识面提高能力大有帮助。同时也有利于发现培养学有余力的学生。Ｂ组题的教学要充分发挥教师...
The problems in the junior middle school Yang Yonghua Compulsory Education junior middle school mathematics textbooks that were conceived by a group B question were divided into A and B groups. As a flexible content of teaching materials. The questions in Group B are of higher teaching requirements. If these kinds of questions are appropriately changed, it will be helpful for students to expand their knowledge and improve their ability. At the same time, it also helps to find students who have ample capacity for cultivation. The teaching of group B should give full play to teachers...