celestial body
Circle what you don't understand, and class will be very simple. That's enough.
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1, read through the math content, draw a picture and circle the concepts and conclusions you think are important.
2. Boldly try to answer the example: first cover the answers in the textbook with paper, and try to examine, analyze and answer the questions yourself; After the answer comes out, compare the methods in the textbook. If you can't answer, take a closer look at the problem-solving methods in the textbook.
3. Mark the difficulties encountered in the preview.
4. Try to practice and finish the corresponding work.
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