1 1. 1 line segment related to triangle

Information technology uses drawing to find rules

1 1.2 Angle related to triangle

Why do you have to prove it when reading and thinking?

1 1.3 sum of polygons and their internal angles

Mathematical activities

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Review questions 1 1

Chapter 12: congruent triangles

12. 1 congruent triangles

12.2 Determination of Triangular Congruence

Application of information technology: exploring congruence conditions of triangles

Properties of 12.3 bisector

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Review questions 12

Chapter 13: Axisymmetry

13. 1 axisymmetric

13.2 draw an axisymmetric figure

Application of Axisymmetric Pattern Design in Information Technology

13.3 isosceles triangle

Experimentally explore the unequal relationship between the sides and angles of a triangle.

13.4 the shortest path problem of project learning

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Review questions 13

Chapter 14: multiplication and factorization of algebraic expressions.

14. 1 multiplication of algebraic expressions

14.2 multiplication formula

Reading and Thinking about Yang Hui Triangle

14.3 factorization

Reading and thinking, x? Factorization of +(p+q)x+pq formula

Mathematical activities

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Review questions 14

Chapter 15: Scores

15. 1 score

15.2 decimal operation

Reading and thinking: Can the water in the container be emptied?

15.3 fractional equation

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Review questions 15