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前不久,我执教了一节送教下乡课“长方形、正方形面积的计算”。课中,孩子们很快提出“我想知道长方形的面积与长方形的什么有关”的问题,并根据已有的知识经验进行积极的猜想。他们认为:“长方形的面积可能与长方形的长和宽有关系。”随后在钉子板上进行验证,并通过对几个已知长和宽的长方形面积的研究,孩子们发现这几个
Not long ago, I coached a section to teach rural areas to teach “rectangular, square area calculation ”. In the class, the children quickly put forward the question “I want to know what the area of the rectangle is related to the rectangle” and make positive conjectures based on the existing knowledge and experience. They think: “The area of the rectangle may be related to the length and width of the rectangle. ” Then verify the nail board, and through the study of several known long and wide rectangular area, the children found that several