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本文对中国、美国、澳大利亚、英国、法国与新加坡六国现行的初中教科书代数内容从整体与年级两个方面进行了比较分析。总体上,六国教科书之间代数内容分布是不均衡的,差距是显著的。六国教科书代数内容整体平均分布比重为38.5%,超过均值的有美国、新加坡与中国三个国家教科书,美国IM教科书最高,达到49%。在年级分布上,美国、法国、新加坡以及澳大利亚教科书内容分布随着年级增加而逐步递增,差异在于增幅的大小;中英两国教科书三个年级分布比较均匀,年级变化较小。
In this paper, we analyze the current algebra content of junior high school textbooks of six countries in China, the United States, Australia, Britain, France and Singapore from two aspects of overall and grade. In general, the distribution of algebra among textbooks in the six countries is uneven, and the gap is significant. The average proportion of textbooks algebra content in the six countries is 38.5%, exceeding the mean of textbooks in the United States, Singapore and China. The highest number of IM textbooks in the United States is 49%. In terms of grade distribution, the distribution of textbooks in the United States, France, Singapore and Australia gradually increases as the grade increases, the difference lies in the magnitude of the increase; the textbooks in both China and the United Kingdom are distributed more evenly in three grades and the grade changes are smaller.