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2014年秋,北师大第4版的全套数学教材开始发行使用。除了教材编写组公布的一些较大的调整,同样的教学内容在编写及使用细节上也有相应改动。现试比较四上教材关于计算教学的一些变动。一、教材变动比较新旧两版教材,可以看出新教材对于相同的教学内容的编写还是做了一定的调整,现以第三单元“卫星运行时间”一课为例说明。1.补充估算过程。新版“卫星运行时间”的例题(包括数字与插图)都没有改变。但是在旧版教材中,它的问题是先呈现
In the fall of 2014, the full set of mathematics teaching materials of the 4th edition of Beijing Normal University started to be used. In addition to some major adjustments announced by the textbook compilation group, the same teaching content has also been changed accordingly in the compilation and use of details. Now try to compare some of the teaching materials on computing changes. First, the textbook changes Comparison of the new version of the two textbooks, we can see that the new textbook for the same teaching content or made some adjustments, now the third unit “satellite running time ” class as an example. 1. Supplementary estimation process. The new version of “Satellite Runtime” has not changed from the examples (including numbers and illustrations). However, in the old textbook, its problem is presented first