一直以来,在抱怨中小学生课业负担的意见中,始终有一条就是认为我国教材难,中小学生学习的东西太难,进而建议降低教材难度。那么,我国中小学教材到底难不难?课业负担与教材难度到底有没有关系?《中小学理科教材难度的国际比较研究》课题组6日发布的研究成果显示,我国中小学教材难度处于国际中等水平,学生课业负担与教材难度没有直接关系。研究背景这项比较研究由中国教育科学研究院袁振国教授担任组长,从2011年2月起汇集六所部属师范大学的150多名学科专家,500多名科研人员协同攻关, All along, in complaining about the burden of schoolwork on primary and middle school students, one thing is that we think that teaching materials in our country are difficult. It is too difficult for elementary and middle school students to learn, and it is suggested to reduce the difficulty of teaching materials. Then, is it difficult for the primary and secondary school textbooks in our country to be difficult? Is there any relationship between the schoolwork burden and the difficulty of textbooks? The research results issued by the research group on the 6th International Comparison of the Difficulties of Science and Technology Textbooks in Primary and Secondary schools show that the difficulty of teaching materials for primary and secondary schools in China is internationally intermediate. At the level, there is no direct relationship between the burden of student’s academic work and the difficulty of teaching materials. Research Background This comparative study was led by Professor Yuan Zhenuo from the Chinese Academy of Educational Sciences. From February 2011, it brought together more than 150 subject experts from six subordinate normal universities, and more than 500 scientific research personnel worked collaboratively.