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多年的低年级数学教学使我发现,孩子对手有着特殊的感情:课堂上,孩子会不自主地玩弄手指,把它当玩具;犯错时,孩子会不自觉地吮着手指,以它为依托;计算有困难时,孩子们又会很自然地数手指,拿它当学具……因此,教学时要最大限度地发挥手的作用,一则能投其所好,激发兴趣,使其在玩中掌握知识,学得轻松,记忆深刻,提高效果;二是手动促脑动,利于智力的发展。所以,手除了常见用途外,还可以作小学生的“数字卡”、“计数器”、“判断符”、“运算符”。一、以手作“数字卡”这里所说的“数字卡”,是指让学生用手表示出0～10各数,简称“手指数”。表示如下:拳头为
Many years of junior mathematics teaching made me find that children's adolescents have a special feeling: in class, children will not play with their fingers involuntarily as toys; when they make mistakes, children will unconsciously suck their fingers and rely on it; When the calculation is difficult, the children will naturally count fingers and use it as a learning tool ... Therefore, teaching should maximize the role of the hand, while being able to make the difference and stimulate the interest to play In the grasp of knowledge, easy to learn, profound memory, improve the effect; the second is to promote the brain by hand, which will help the development of intelligence. Therefore, the hand in addition to common purposes, but also for primary school students “digital card”, “counter”, “judge”, “operator.” First, to hand as a “digital card” here to say “digital card” is to allow students to show the number of 0 to 10 watches, referred to as “the number of fingers.” Said as follows: fist as