When entering junior high school, the learning pressure will naturally increase and the learning difficulty will greatly increase. For the students in Grade Two, the knowledge points of Grade Two in the next semester are more difficult. Such as linear function and inverse proportional function. This is also the function knowledge that junior two students are exposed to will run through the whole process of junior high school and senior high school. It is the key content of algebra learning and a powerful tool to solve comprehensive problems. Its learning effect directly affects students' answers in the senior high school entrance examination.

First, the difficulty of inverse proportional function

Understand the inverse proportional function and abstract the analytic function of inverse proportional relationship from practical problems. The image of inverse proportional function will be drawn, and the properties of inverse proportional function will be summarized by image analysis. Infiltrate the mathematical thought of combining numbers with shapes and the materialistic thought of universal connection. The learning function should be gradual. First of all, it is about variables and constants. This part is relatively simple and has a great relationship with linear equations. If Han Moumou is used to represent the number of so-and-so, this is the basic function. Moreover, the inverse proportional function has a certain analytical expression, and its image can be studied by using the correct analytical expression. Therefore, when learning inverse proportional function, we must study and use it together according to the linear equation of one variable and the linear equation of two variables. This is also the difficulty of the whole inverse proportional function.

Second, the difficulties of Pythagorean theorem

First of all, we should understand the characteristics of Pythagorean theorem, that is, in a right triangle, the sum of the squares of two right angles is equal to the square of the hypotenuse, and then we should memorize some commonly used Pythagorean numbers, which can save time in doing the questions, and then we should answer them according to the meaning of the questions. Moreover, Pythagorean theorem has its own Pythagorean equation, so just remember the equation. Understanding the proof of Pythagorean Theorem, mastering the content of Pythagorean Theorem, and initially using Pythagorean Theorem to calculate, draw and prove it are the difficulties of Pythagorean Theorem.

Third, draw a circle parallel to the square.

In the mathematics of the second semester of the second grade, it is very important to learn the verification of drawing circles and parallelograms, which is very difficult. Because the circle and the parallel square are not necessarily uncertain values, they often change because of the change of a line in the evaluation process, so this is the difficulty. Maybe sometimes you verified his answer, but you made a mistake because of a certain point. Therefore, in the process of learning, we must constantly practice mathematical expressions in order to break through the difficulties.