A Comparative Study Of The "Space And Figure" In Different Versions Of New Textbooks Of Middle School Mathematics

The elementary education curriculum reform is not only make content of elementary education change, but also make the textbook organizational structure transfer from the past "one standard one textbook" to "one standard several textbooks". The regions of Zhejiang had successively used the edition of East China Normal University, the edition of Peoples education and the edition of Zhejiang education since the elementary education curriculum reform. Comparing the three editions is good for further promoting the reform. So this paper selected "space and figure", which changes greatly in this reform. Use the curriculum difficulty model established by Ningzhong Shi and the multi-factor model established by Jiansheng Bao to compare it from the difficulty of curriculum and the composite difficulty of problem. Then, we conducted a questionnaire survey of teachers, which is to verify the results of the comparison and the three editions' adaptability in Zhejiang.The findings in curriculum comparative study are followings: on lesson period, the edition of Peoples education is more than the edition of Zhejiang education, and the edition of East China Normal University education is the least. On curriculum width, the edition of Zhejiang education is more than the edition of Peoples education, and the edition of East China Normal University education is the least. The first two is more than the curriculum standard. On the depth, the edition of Zhejiang education is deeper than the edition of Peoples education, and the edition of Peoples education is deeper than the edition of East China Normal University education. And all of them are deeper than the curriculum standard. In summary, the difficulty of curriculum, the edition of Zhejiang education is harder than the edition of East China Normal University edition, the edition of Peoples education is the least.The findings in problem comparative study are followings: on investigation level, the edition of Peoples education is higher than the edition of East China Normal University education, and the edition of Zhejiang education is lowest. On context level, the edition of Peoples education is higher than the edition of Zhejiang education, and the edition of East China Normal University education is lowest. On computation level, the edition of East China Normal University education is higher than the edition of Zhejiang education, and the edition of Peoples education is the lowest. On reasoning level, the edition of Zhejiang education is higher than the edition of Peoples education, and the edition of East China Normal University education is the lowest. On topic coverage level, the edition of Peoples education is higher than the edition of Zhejiang education, and the edition of East China Normal University education is the lowest. So on problem difficulty, the edition of Peoples education is hardest, others are the same. It is clear that new textbooks are not focus on two basics, but also develop various factors.Further, the questionnaire survey show that: the edition of Peoples education is harder than the edition of Zhejiang education, and the edition of East China Normal University education is the easiest. The problems is too hard to rise the edition of Peoples education' diffculty. On the other hand, it shows that the edition of Zhejiang education' difficulty is moderate and keep with the students' need.Comparison of text and survey show that: the three editions are based on the curriculum standard. Everyone owns unique features. And on problem selecting, everyone is different.From the research that: (l)The textbooks difference are reasonable, the key is whether the student fit. (2)Use the difference among textbooks, considering curriculum design, spiral, to alleviate the difficult content. (3)Explore some characteristics problem situation, and further seek how to keep balance of the five levels. (4)Make the difficult consistent between the curriculum and problems.Of course, the difficulty of curriculum general with problems, and to investigate the results of the comparison is still relatively uncommon at present, this study is only preliminary work, hoping for the revision and selection of textbooks may play the role of reference.