Math problems are full of conspiracy, which is the author's experience of teaching mathematics for nearly 30 years.
Mathematics is a magical subject, and children who like it enjoy it, and children who hate it hate. What is the root cause of this dichotomy? Based on the author's observation, thinking and teaching practice, the cultivation of mathematical interest, the training of mathematical thinking and the enlightenment of mathematical thinking are very important for children when they are young.
Today, I will share "Yang Mou in Math Problems", and I suggest that you feel it with your heart and understand it carefully. When tutoring children to learn mathematics, guide children to observe, analyze and think more, and adhere to the step-by-step educational concept, waiting for children to become enlightened and enlightened.
For the sake of simplicity, let's use elementary school math problems.
Example: Compare the size of the sum of two numbers, and fill in ">" or "=" on the horizontal line according to the calculation.
If we really honestly calculate the sum of the two sides, and then compare the size, we will fall into the trap of the questioner and fall into the pit he has set. The result of this is not only tedious calculations, time-consuming, but also error-prone.
We notice that the first term on the left, 53783, is 1 more than the second term 53782 on the right, and the second term on the left, 35749, is 1 less than the first item on the right, 35750, and immediately we get that the sum of both sides is equal.
In this way, the conspiracy of the questioner is avoided, because we have discovered the conspiracy.
Practice Compare the magnitude of the sum of two numbers and fill in ">" or "=" on the horizontal line according to the calculation.
The highest level of doing math problems is to know the intention of the person who wrote the problem (the pit dug --- the test point), find the trap door to solve the problem, the conspiracy becomes a conspirator, and the rest is to be confident. Of course, the more mathematical knowledge, methods and ideas you master, the easier it is to uncover the conspiracy of the questioner and find the trap information to solve the problem. If every question is a math math for you, then you're a math master.