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计算教学是数学教学的重点内容,苏教版义务教育课程标准实验教材一年级上册编排了“5以内的加减法”“10以内数的加减法”“连加、连减”“加减混合”“10加几的加法和相应的减法”“20以内的进位加法”等内容。教材从加减法意义的教学开始引入算法多样化,并在以后的计算教学中始终体现这一思想。但我们认为,有的学习内容没有必要多样化,如“连加连减”“0的有关加减法”“加减混合”等。因此,我们在具体的教学实施中从以
Computation teaching is the key content of mathematics teaching, the first edition of the compulsory education curriculum standard experimental teaching book of Jiangsu Education Edition is arranged with the addition and subtraction of less than 10% Subtract “” addition and subtraction mixed “” 10 plus a few additions and the corresponding subtraction “” within 20 addition “and so on. The teaching material introduces the diversification of algorithms from the teaching of addition and subtraction, and embodies this thought in the calculation teaching later. However, we think there is no need for diversification of some learning contents, such as ”addition and subtraction“ and ”addition and subtraction". Therefore, we are in the implementation of specific teaching from