What is the content of Luo Ji's thought of "day class"? Suitable for high school students?

Simply put, it is the old textbook of the Republic of China+calendar notebook.

The original intention of the old textbooks of the Republic of China is "May the mother tongue of a hundred years ago continue to warm the present years". Judging from hundreds of textbooks from 1902 to 1937, it seems that they are basically primary school textbooks, which are not particularly helpful for you to learn high school knowledge.

Calendar notebooks can basically have 1 pages to write on every day, which is suitable for planning or summarizing a day. Whether you are a primary school student, a middle school student or a college student, or even a working adult, it is applicable.

"One lesson a day 20 15" is divided into four volumes in spring, summer, autumn and winter, and adopts the style of one lesson a day. This compilation follows the arrangement of festivals, solar terms and holidays on 20 15, and takes "week" as the length, from simple to complex, and arranges living objects, flowers, birds, insects and fish, philosophical common sense, stories and games.