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教学要求: 懂得什么是等分;知道一个图形等分后,原图形比每一份都大,每一份比原图形都小,等分的两份一样大,都是原图形的一半;掌握二等分图形的不同分法,发展幼儿的思维、想像及动手操作能力。教学准备: 用纸剪成一样大的圆形、正方形各2个、长方形4个及彩笔一支、剪刀一把。幼儿和教师各一份。教师还准备大圆形、三角形(等腰或等边的)、五角星、扇形、梅花形、六边形(等边的)等各一个。教学过程: 一、比较三个圆形(其中两个一样大)的大小,复习和强化“大”、“小”、“一样大”的概念。二、设置情景,讲清什么是等分1.提出等分问题:“奶奶给小华一个大苹果,正好
Teaching Requirements: Know what is the equivalent; Know a graphic equal, the original graphic than every one are large, each one smaller than the original graphic, equally divided two are the same, are half of the original graphics; master Bisectional graphics of different points, the development of children’s thinking, imagination and hands-on ability. Preparation for teaching: paper cut into the same large circle, the square of 2, rectangular 4 and a colored pencils, a pair of scissors. One for toddlers and teachers. Teachers also prepare large round, triangular (isosceles or equilateral), five-pointed star, fan-shaped, plum-shaped, hexagonal (equilateral) and so on. Teaching process: First, compare the size of three circles (two of them are the same size), review and strengthen the concepts of “big”, “small” and “as big as”. Second, set the scene, make it clear what is an equal share 1 proposed equal points Question: "Grandma to Xiaohua a big apple, just