16. 1 square root and cube root

16.2 quadratic radical

16.3 real number and number axis

Extracurricular reading: the origin of radical symbols

Super drill bit

Chapter 17 Functions and Their Images

17. 1 variables and functions

17.2 functional diagram

17.3 linear function

17.4 inverse proportional function

Practice and exploration of 17.5

Extracurricular reading: a brief history of function

Super drill bit

Chapter 18 Graphic Similarity

18. 1 similar graphics

18.2 characteristics of similar graphs

18.3 similar triangles

18.4 draw a similar figure.

18.5 graphics and coordinates

Extracurricular reading: a similar but unequal triangle

Super drill bit

Chapter 19 Solution of Right Triangle

19.2 Pythagorean Theorem

19.3 sharp trigonometric function

19.4 Solving Right Triangle

Extracurricular reading: Pythagorean theorem

Super rehearsal

Chapter 20 Data collation and preliminary processing

20. 1 Select the appropriate chart to sort the data.

20.2 Range, variance and standard deviation

20.3 Comparison of opportunity size