Current location - Training Enrollment Network - Mathematics courses - 50 math problems
50 math problems
Book one

Unit 1 Rational Numbers

1. 1 positive and negative numbers

Reading and thinking: using positive and negative numbers to represent the allowable error of machining

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

Math activity/summary/review 1

Addition and subtraction of algebraic expressions of the second unit

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

Math Activity/Summary/Review Question 2

Unit 3 One-dimensional 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 (2)-Remove brackets and denominator.

3.4 Practical problems and linear equations of one variable

Math Activity/Summary/Review Question 3

Unit 4 a 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.

Math Activity/Summary/Review Question 5

Index of some Chinese and English words

Volume II

Unit 5 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

Unit 6 Plane Cartesian Coordinate System

6. 1 plane rectangular coordinate system

6.2 Simple application of coordinate method

Reading and thinking

Teaching activities/summary

Unit 7 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 sum of polygons and their internal angles

Reading and thinking

7.4 Project Learning Mosaic

Teaching activities/summary

Unit 8 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

Unit 9 Inequalities and Inequality 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