現在中学里所用的平面三角課本是根据中学数学教学大綱修訂草案編写的,它比苏联翻譯本更切合于我国情况,使用几年来在教学上已取得不少成績,一般学生都认为三角这一門是比較容易学习的;課外作业負担也不重;总复习的时間比較多,这些成績的取得,除跟觉的正确領导、师生的努力有关外,課本的作用也是不容忽視的,不过随着工农业大跃进形势的发展,随着新教育方針的提出,国家对中学生提出了更高要求的情况下,原有教材是不能滿足于需要的,也就是原有教材有加以改变的必要,翻开現用教材,我們会 The plane triangle textbooks used in middle schools are now compiled according to the revision draft of the secondary school mathematics syllabus. It is more relevant to the situation in the country than the Soviet version. It has achieved many achievements in teaching in the past few years. The average student thinks that this triangle It is easier to learn; the burden of extra-curricular assignments is not heavy; the total review time is relatively large, and the achievement of these achievements is related to the correct leadership of teachers and the efforts of teachers and students. The role of textbooks cannot be ignored. With the development of the Great Leap Forward in the industry and agriculture, and with the introduction of the new education policy, the state has set higher requirements for middle school students, the original textbooks cannot meet the needs, that is, the original textbooks must be changed. Open the current teaching materials, we will