小学生入学前,一般对于多、少都有了初步的认识,但是不会用一一对应的方法来比较两组物体的多、少,往往是从直观感觉或者用数一数的方法来比较多少。教学时,我充分运用了多媒体教学,让抽象的知识“动”了起来:根据课本上的画面设置了动画课件,先分别从屏幕左右两边依次走出一只小鸡和一只小鸭,让学生观察这是什么?(学生会聚精会神地观察画面,并做出回答:“这是一只小鸡和一只小鸭。”)接着提问:“小鸡多还是小鸭多?”对于这样的问题学 Primary school students before admission, generally for more, less have a preliminary understanding, but will not use a one-to-one method to compare the two groups of objects more, less, often from the intuitive feeling or the number of ways to compare how much . Teaching, I make full use of multimedia teaching, so that the abstract knowledge “move ” up: According to the text on the screen set up animation courseware, respectively, from the left and right sides of the screen followed by a chick and a duck, Let the students observe what this is. (The students will be attentively observing the picture and answering: “This is a chick and a duckling.”) Then ask: “How many chickens or duckling? ”For such a problem study