This is a teaching aid book specifically designed for junior high school students to take shorthand notes of knowledge points in the fourth grade exam. Divide and break down the exam points, and students should read appropriate content every day to reduce learning pressure. The exam section is divided into early and bedtime, so students should plan their time accordingly. Using the hippocampus memorization method, memorize key points at night, listen to audio of knowledge points while sleeping, read key points in the morning, and take real exam questions to strengthen memory retention. Use various forms such as images, tables, mind maps, etc. to help students understand and remember. Encourage students to use their spare time to learn the four subjects well

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