Introduction of average change rate:
The average change rate is the ratio of the increment of y to the increment of x, which can be used to observe the change speed of the function and how the function changes. You can also learn the average rate of change before learning the derivative, which will pave the way for later learning the derivative.
What is the secret of learning math well?
1, insist
Persistence is the key to learning mathematics well. Spend at least 40 minutes every day doing math-related things, or practicing, or reading, or doing difficult problems to hone your brain. It's a great sense of accomplishment to regard doing the problem as a long-lost victory. If you persist for a long time, math will get better and better.
Step 2 preview
The secret of learning mathematics well lies in preview. Preview is an important part of learning. Through preview, we can know the content of knowledge in advance, find out the key points and difficulties, and cultivate the self-study ability after thinking. At the same time, you can also take notes in preparation for review. There are many ways to preview, such as actively previewing and taking notes. Through preview, you can master knowledge in advance and improve the learning effect.
3. Review from the basics.
The key to learning mathematics well is to review the basic knowledge and establish a solid mathematical foundation. By listening to math classes and doing problems, I gradually master math knowledge and form my own way of thinking. At the same time, we should review, summarize and sort out the knowledge organically. Finally, review, practice, summarize and consolidate the basic knowledge.
4. Strengthen reflection after doing the questions.
The secret of learning mathematics well is to strengthen reflection after doing the problem. Through reflection after doing the questions, you can sum up what questions you have done, what methods you have used, and what knowledge points you need to focus on.
Only in this way can we form a scientific network system of contents and methods and improve the learning effect. At the same time, after doing the questions, you should also review and summarize, break your knowledge into pieces, and do a series of questions, which can be appropriately added, deleted and improved. Only in this way can we form a systematic learning process and improve mathematical thinking and problem-solving ability.