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在《分数的再认识分数的再认识》一课中,特级教师钱守旺老师采用大量直观素材,用丰富多样的表象作为支撑支撑,在巧妙衔接中让学生感悟灵活而变通的单位“1”。课堂教学丰富而有内涵,学生对分数意义的认识从模糊走向清晰,充分彰显其教学智慧。《分数的再认识》是“分数的意义和性质”的第一课时。教学前我们需要思考:再认识什么?首先,是对“整体”的再认识。以前我们把一个物体或图形等看成
In the lesson of “rerecognition of scores,” the supervisor Qian Shuanwang used a large number of visual materials to support students with rich and varied appearances, which enable students to perceive the flexible and adaptable units “. Classroom teaching is rich and connotative, and students’ understanding of the meaning of scores goes from vagueness to clarity, fully demonstrating their teaching wisdom. ”Re-understanding of scores“ is the first lesson of ”the meaning and nature of fractions.“ We need to think before teaching: What do we know? First of all, we must re-understand the ”whole". We used to think of an object or figure as before