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一、手脑并用,让学生主动参与课堂上设计手、脑并用的操作活动,有利于学生自主参与到教学中来。在教学中,我充分利用学生手中的多个正方形、正六边形、正五边形、长方形、梯形、正三角形、三角形、任意四边形等图形,拼摆在一起,让学生的多种感官参与活动,摄取大量的感性材料作为建立理性认识的基础。从观察、拼摆的图案造型中比较、体会密铺的含义,归纳总结密铺的特征。让学生充分参与,人人参与,自始至终参与到整个探究新知的过程中,
First, the brain and use, so that students take the initiative to participate in classroom design hands, brain and the use of operational activities, help students to participate in teaching independently. In teaching, I make full use of students’ hands in multiple squares, regular hexagons, regular pentagons, rectangles, trapezoids, equilateral triangles, triangles, arbitrary quadrilateral graphics, put together to allow students to participate in a variety of sensory activities , Ingesting a large amount of perceptual material as a basis for establishing a rational understanding. From the observation, fight put the pattern in the comparison, understand the meaning of dense, summed up the characteristics of dense. Allow students to fully participate in, everyone involved, from beginning to end to participate in the entire process of exploring new knowledge,