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动手实践是学生学习数学的重要方式,它能丰富学生的感性认识,促进学生在做中主动探索,从而感悟与建构数学知识。但在实际教学过程中,学生的动手操作往往只是按照教师的“指令”行动,缺少应有的数学思考和实践反思,学生并没有通过真正的亲身体验来构建知识,从而大大降低了动手实践的效果。那么,如何提高动手操作的实效呢?结合“三角形的面积”的两个教学片段谈谈自己的看法。【教学片段一】每组同学课前分别准备两个完全一
Hands-on practice is an important way for students to learn mathematics. It can enrich the students ’perceptual knowledge and promote students’ active exploration while doing so to comprehend and construct mathematics knowledge. However, in the actual teaching process, the students ’hands-on activities are often only based on the teachers’ “instructions”, the lack of proper mathematical thinking and practical reflection, students do not really build the knowledge through personal experience, thus greatly reducing the hands-on The effect of practice. So, how to improve the effectiveness of hands-on operation? Combined with the “triangle area” of the two sections to talk about their own views. [A piece of teaching] each class before class were prepared two completely one