体育课使用课本的比例在逐渐增加；

The sports apparatus per student are unadequate and laking in variety.

youdao

一个不去学校的孩子也可能使用课本或教室，但这些并不是教育的核心。

An unschooled child may utilize texts or classroom instruction, but these are not considered central to education.

youdao

结果，可供学生使用的课本很少。

As a result, there were very few textbooks for the students to use.

youdao

And using the text plus these archive notes,I think you will be able to piece together what you need.

使用这个课本，再加上存档笔记，我想,你们已经能组合出你们需要的了。

麻省理工公开课 - 固态化学导论课程节选