Chapter 16 Scores
16. 1 score
16.2 decimal operation
16.3 fractional equation
Chapter 17 Inverse proportional function
17. 1 inverse proportional function
17.2 practical problems and inverse proportional functions
Chapter 18 Pythagorean Theorem
18. 1 Pythagorean theorem
Inverse Theorem of Pythagorean Theorem 18.2
Chapter 19 Quadrilateral
19. 1 parallelogram
19.2 Special parallelogram
19.3 trapezoid
19.4 key points of project learning
Chapter 20 Data Analysis
20. 1 representative of data
20.2 data fluctuation
20.3 Data Analysis in Physical Fitness Test of Project Learning
Question 2: What does junior high school mathematics mainly learn to strengthen algebra, which extends to quadratic equations with one variable and some simple functions.
In terms of graphics, the judgment, nature and utilization of triangles, quadrangles and circles.
Number-shape combined coordinate system
And statistics, probability and other miscellaneous things.
Question 3: What do you study in junior high school mathematics? Algebra:
1, rational number, irrational number, real number
2. Algebraic expressions, fractions and quadratic roots
3. One-dimensional linear equations, one-dimensional quadratic equations, two-dimensional (three-dimensional) linear equations, two-dimensional quadratic equations, fractional equations and one-dimensional linear inequalities.
4. Functions (linear function, quadratic function, inverse proportional function)
5. Preliminary statistics
Geometric part
1, line segment, angle
2. Intersecting lines and parallel lines
Step 3: Triangle
4. Quadrilateral
5. Similar shapes
6. circle
Question 4: What do you mainly study in junior high school mathematics? Basic knowledge of geometry, function, statistics and probability, and common logical reasoning methods.
Specifically,
Geometry includes: basic geometric figures and their properties, the properties and judgment methods of triangles, quadrangles and special quadrangles, circles and right triangles;
Algebra includes: related concepts and operations of real numbers, operations of algebraic expressions, equations (groups), inequalities (groups) and functions;
In addition: the basic knowledge of statistics and simple probability calculation. .
Question 5: What do you study in senior two mathematics? What knowledge points should I pay attention to? I just came from the second grade.
I think junior two mathematics should pay attention to triangle and factorization (this is just my opinion).
Because I am now in Grade Three, many problems are related to triangles, and the parabola in Grade Three has a lot to do with factorization. So, if factorization can't be done, then parabola can't be done at all.
I hope the landlord will adopt it
Question 6: What are the difficulties in junior high school mathematics? It is more difficult to learn. Through the comprehensive analysis of the senior high school entrance examination over the years, it is found that almost 50% of the test sites in the senior high school entrance examination papers will appear in the knowledge points of junior high school, and most of the key, difficult and hot spots of the examination will also involve junior high school, especially mathematics. Only by doing well in junior high school mathematics can we win the world of mathematics in the college entrance examination.
(A) linear function and inverse proportional function
The knowledge of functions we come into contact with in senior two will run through the whole learning 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 the solution of the grade problem of the senior high school entrance examination.
1, and so on, accumulating the regular order of learning functions will help you find a shortcut to remember and call knowledge conveniently in the complicated content of functions. For example, the learning of general functions will follow the following sequence: analyzing the definition, expressing methods, identifying the images and properties of corresponding functions, and identifying the corresponding equations and inequalities (groups) learned before from the perspective of functions, and applying them in practice.
2. Common hot spots and difficulties focus on the combination of numbers and shapes. You can consciously reduce the problems and optimize the methods under the guidance of the teacher.
In fact, algebra, fraction and quadratic root all have their similarities. If we study it from the perspective of analogy, we will get twice the result with half the effort.
(2) congruent triangles
This part of the content is more flexible, theorems are gradually increasing, and the requirements for geometric proof are gradually improving, so it is easy to appear "false mastery" (when reading the answer, I always feel "almost" when writing it myself, but actually I can't meet the requirements for solving problems). It is a place that especially embodies the importance of basic knowledge, reflection and summary, and problem-solving strategies in geometry learning.
1, pay attention to the basic format. Many students were not used to geometric reasoning at first. In fact, there is a good way to write some key topics repeatedly on a regular basis, which especially needs to be realized word by word.
2. Collect commonly used basic drawings. When dealing with geometric problems, if we can quickly find "familiar" drawings, we can quickly find a breakthrough in solving problems.
3, regular reflection and summary. Geometry problems will be more chaotic than algebra problems. You can't "handle" the next "new problem" just by doing a lot of problems, especially quadrilateral. The content is more complicated, so it is impossible to do all the problems, not to mention reviewing so many geometry comprehensive problems in grade three. Therefore, we need to develop the habit of regular reflection and summary at an early stage.
I'm happy to answer your question. Please adopt them.