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留白,就是指在数学教学中,适当地留点空白,给学生留下一点自觉思维的空隙和自觉内化的机会,引导学生积极探索,激发学生学习兴趣,使教与学双边活动有机地协调进行.一般而言,学生的注意力每隔5～7分钟就要分散.另外,从提出问题到回答问题应该过2-3分钟才能有一个必要的思维活动空间,因此恰当的留点空白有利于学生的思考和提高思维的质量,有利于缓和学生的紧张心理,以唤起学生的注意力.在讲课时,教师不能将所有的知识都和盘托出,把思维的
To leave blank, is to leave some blanks in mathematics teaching, leaving students with a little space for conscious thinking and the opportunity to consciously internalize, guide students to actively explore, stimulate students’ interest in learning, and make teaching and learning bilateral activities organically. Coordinated conduct. In general, students’ attention must be dispersed every 5-7 minutes. In addition, it takes 2-3 minutes from asking questions to answer questions to have a necessary mental activity space, so leave blank. Help students think and improve the quality of thinking, help ease the tension of students in order to arouse the attention of students. In the lecture, teachers can not put all the knowledge out of the box, the thinking of