1. Can you prove them?
2. Right triangle
3. perpendicular bisector of the line segment
4. Angle dividing line
Review and thinking
Review exercises
Chapter II Quadratic Equation in One Variable
1. How wide is the lace?
2. Matching method
3. Formula method
4. Factorization method
5. Why 1.6 18?
Review and thinking
Review exercises
Chapter III Proof (III)
1. parallelogram
2. Special parallelogram
Review and thinking
Review exercises
Chapter IV Views and Forecast
1. perspective
2. Sunshine and shadow
3. Lights and shadows
Review and thinking
Review exercises
Chapter V Inverse Proportional Function
1. Inverse proportional function
2. Images and properties of inverse proportional function
3. The application of inverse proportional function
Review and thinking
Review exercises
Project learning
Conjecture, Proof and Generalization
Chapter VI Frequency and Probability
1. Frequency and probability
2. Needle injection experiment
How many fish are there in the pond?
Review and thinking
Review exercises
General revision
Book 2, Grade 9
(Training Manual)
The first chapter is the angular relationship of right triangle.
1. Starting from the gradient of the ladder
2.30? 0? 2,45? 0? 2,60? 0? Trigonometric function value of angle 2
3. Calculation of trigonometric function
Is this ship in danger of hitting the rocks?
Review and thinking
Review exercises
Chapter II Quadratic Functions
1. Relationship described by quadratic function
Understand parabola
3. Braking distance and quadratic function
4. Image of quadratic function
5. Express quadratic function in three ways.
6. When did you get the biggest profit?
7. What is the largest area?
8. Quadratic function and unary quadratic equation
Review and thinking
Review exercises
Project learning
Arch bridge design
Chapter III Circle
1. Why are wheels round?
2. Symmetry of the circle
3. The relationship between central angle and central angle
4. Determine the conditions of the circle
5. The positional relationship between a straight line and a circle
6. The positional relationship between circles.
7. Arc length and sector area
8. Transverse area of cone
Review and thinking
Review exercises
Project learning
Design an ordinary shed
Chapter IV Statistics and Probability
1.50 years change
2. Which way is more cost-effective?
3. Is the game fair?
Review and thinking
Review exercises
Project learning
Mathematics in the media
General revision