Draw the key points. A scribbled book is a general review book, and all the knowledge points are collected into one book, with many knowledge points, but not detailed enough; The focus of the painting is like a catalogue, and the knowledge points are arranged in a comprehensive way, so you can easily and quickly master the knowledge you have learned and check for leaks in time, so the focus of the painting is good. Primary school is a school that receives primary formal education and is an important part of basic education, which belongs to nine-year compulsory education.