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 2: What does junior high school mathematics talk about?
The first volume of the seventh grade
Addition and subtraction of rational number 1.3
Experiment and Exploration of Filling Rubik's Cube
Reading and Thinking China people first used negative numbers.
Multiplication and division of rational number 1.4
Observe and think about the mathematical truth in the flop game.
1.5 power of rational number
Mathematical activities
summary
Review questions 1
Chapter II Addition and subtraction of algebraic expressions
2. 1 algebraic expression
Read and think about the dialogue between the number 1 and the letter X.
2.2 Addition and subtraction of algebraic expressions
Information technology application spreadsheet and data calculation
Mathematical activities
summary
Review question 2
Chapter III One-variable Linear Equation
3. 1 From Formula to Equation
Reading and Thinking about the Historical Story of Equation
3.2 Solving a linear equation with one variable (1)- merging similar terms and shift terms.
Experiment and Exploration of Infinitely Cycling Decimal Decimal Fractions
3.3 Solve the linear equation of one variable (II)- Remove brackets and denominator.
3.4 Practical problems and linear equations of one variable
Mathematical activities
summary
Review question 3
The fourth chapter is the preliminary understanding of graphics.
4. 1 color graphics
Reading and thinking about the origin of geometry
4.2 Lines, rays and line segments
Measurement of reading and thinking length
4.3 jiao
4.4 This topic is to study the design and manufacture of cuboid packaging carton.
Mathematical activities
summary
Review question 4
Index of some Chinese and English words
The second volume of the seventh grade
Chapter V Intersecting Lines and Parallel Lines
5. 1 intersection line
5. 1.2 vertical line
5. 1.3 Conformal angle, internal dislocation angle and ipsilateral internal angle.
Observe and speculate
5.2 Parallel lines and their determination
0+0 parallel line
5.3 Properties of parallel lines
Properties of parallel lines
Propositions and theorems
5.4 Translation
teaching activities
summary
Chapter VI Plane Cartesian Coordinate System
6. 1 plane rectangular coordinate system
6.2 Simple application of coordinate method
Reading and thinking
6.2 Simple application of coordinate method
teaching activities
summary
Chapter VII Triangle
7. 1 Line segment related to triangle
7. 1.2 The bisector of the height, midline and angle of a triangle.
7. Stability of1.3 Triangle
Information technology application
7.2 Angle related to triangle
7.2.2 External Angle of Triangle
Reading and thinking
7.3 Multiple deformations and sum of their internal angles
Reading and thinking
7.4 Project Learning Mosaic
teaching activities
summary
Chapter VIII Binary Linear Equations
8. 1 binary linear equations
8.2 Elimination Solution of Binary Linear Equation
8.3 Practical Problems and Binary Linear Equations
Reading and thinking
*8.4 examples of solving ternary linear equations
teaching activities
summary
Chapter 9 Inequality and Unequal Groups
9. 1 inequality
Reading and thinking
9.2 Practical Problems and One-dimensional Linear Inequalities
Experiment and inquiry
9.3 One-dimensional linear inequality system
Reading and thinking
teaching activities
summary
Chapter 10 Data Collection, Arrangement and Description
10. 1 statistical survey
Experiment and inquiry
10.2 histogram
10.3 project learning talking about water saving from data
teaching activities
summary
Index of some Chinese and English words
The first volume of the eighth grade
Chapter 11 Linear Functions
1 1. 1 variables and functions
Computer drawing function image of information technology application
1 1.2 linear function
Read and think about how scientists measure the age of the earth.
1 1.3 Viewing Equations (Groups) and Inequalities from the Perspective of Functions
Mathematical activities
summary
Review questions 1 1
Chapter 12 Data Description
12. 1 Several common statistical charts
Describe data with charts
The application of information technology uses computers to draw statistical charts.
On the author's reading and thinking ... >>
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 master in junior high school mathematics? What to learn in senior one, senior two and senior three, and where to start? There is an order, such as what to learn first and what to learn later. Junior high school mathematics mainly includes several large pieces of content 2:
1, number. Refers to the expansion from natural numbers to real numbers, mainly in the first day of junior high school, in which the first book begins with rational numbers and the second book begins with irrational numbers;
2. Formula, that is, algebraic formula. The first grade will learn algebraic expressions, the second grade will be divided into classes, and the third grade will be divided into two classes. Of course, algebraic operations, such as factorization (in the second day of junior high school) should also be included in this part;
3. Equations and inequalities. The first volume of the first day of junior high school learns the linear equation of one yuan, and the second volume (group) learns the linear equation of two yuan and linear inequality; Learning fractional equation in the second day of junior high school; Learn one yuan twice in the third grade;
4. Function. Learn a function in Grade Two, an inverse proportional function in Grade Two and a quadratic function in Grade Three.
5. geometry. Basic knowledge of geometry in senior one, triangle congruent triangles, special triangle, parallelogram in senior two, and circle in senior three.
6, statistics and probability, etc. It is also scattered in all grades and studied alone. Such as bar chart, fan chart, variance and median pattern, the probability is in grade two or three.
Question 5: What should I learn in junior high school mathematics? Even if you want to teach yourself, you'd better buy math textbooks from the first to the third grade if you want to know what mathematics is taught in junior high school. You can learn 60% by reading books, and the rest can be consolidated by exams. In addition, it is not recommended that you teach yourself, follow the teacher's footsteps and arrange the study time of each subject reasonably, so that the balance of the scores of each subject is more conducive to the improvement of middle school.
Question 6: What do you want to learn first and then what do you want to learn? Well, according to my own experience, junior high school mathematics learns numbers first-rational numbers, irrational numbers, real numbers, negative numbers, antonyms and so on.
Then there are formulas, numbers and formulas, quadratic roots, powers, cubic roots and so on. Then there are addition, subtraction, multiplication and division of numbers and formulas, factorization, inequalities and so on. . . .
Then there are probably linear functions, the concept and proof of congruent triangles, and so on. . . It seems that these are the first days. . . . . .
You can learn these first, well, if you want to continue to study in depth, you can watch some teaching videos of junior high school mathematics.
I hope the above will help you.
Question 7: What are the main subjects of junior two mathematics? Algebra. (Quadratic root is the key)
Geometry (learning triangles and polygonal stars, mainly on parallelograms)
Function (There is a function in Grade Two. There are inverse proportional function and penetration function in grade three. It should be advanced)
Statistics. Probability (this is very simple. 100% will do it as long as you are careful in class)
Solve the equation (I want to learn 2 yuan's 1 degree equation well. Algebra is the foundation).
That's about it.
I wish you good grades.