The first lesson of mathematics in the first volume of the fifth grade is the fractional division mentioned in "Careful Calculation", the first lesson of Chinese in the first volume of the fifth grade is "Egret", and the first lesson of English is Whatishelike? .

Among them, Chinese Egret, also known as Little Egret, Egret and Pelican, is a medium-sized bird belonging to Egretidae.

Egrets belong to 13 species, among which great egrets, middle egrets, small egrets, yellow-billed egrets and snow egrets are all white, and they are called egrets in the world.

Guo Moruo, formerly known as Guo Kaizhen, whose real name is Tang Ding, whose real name is Wu Shang, whose pen names are Moruo, Macon, Yang Yizhi, etc. China is a famous writer, historian and social activist, and also one of the founders of China's new poetry.