论文部分内容阅读
加减运算教学 1.应该突出加减运算的数量关系:不少教师加减运算教学的注重点是做题的结果,只注意算得对不对,忽视让幼儿认识运算的数量关系。从发展幼儿的思维出发,应该让幼儿意识到运算的逻辑关系:其一是加法的“交换关系”,即加数与被加数交换位置,其得数不变;其二是加减的“逆反关系”,减法是加法的逆运算,如2+7=9,逆运算是9-7=2或9-2=7。引导幼儿初步认识这些关系,有利于幼儿举一反三,提高运算能力,发展思维的灵活性、可逆性和逻辑性。
Addition and subtraction teaching 1. Should highlight the number of addition and subtraction operations: Many teachers add and subtract the teaching of teaching is the result of the problem, only pay attention to the right or wrong, ignoring the number of children understand the relationship between the operation. From the development of young children’s thinking, children should be aware of the logic of the operation: One is the addition of the “exchange relationship”, that is, the addend plus the number of exchange positions, the same number of its gains; the other is the addition and subtraction of “ Inverse ”, subtraction is the inverse of addition, such as 2 + 7 = 9, the inverse is 9-7 = 2 or 9-2 = 7. To guide children to initially understand these relationships is beneficial for young children to use the best of the best, to improve their ability to operate and to develop their flexibility, reversibility and logic.