Ⅰ Real Numbers and Their Operations
Lesson 1: Meaning and Expression of Square Roots
Lesson 2: Properties of Square Roots
Lesson 3: Irrational Numbers and Real Numbers
Lesson 4: Relationships between real numbers/Square root table
Lesson 5 Multiplication and Division of Square Roots
Lesson 6: Rationalization of Denominators
Lesson 7: Addition and Subtraction of Square Roots

Calculation of equation Ⅱ and quadratic equation
Lesson 8 Multiplication Formulas
Lesson 9: Calculation using the multiplication formula
Application of the 10-step multiplication formula
Lesson 11: Meaning and Formula of Factoring
Lesson 12: Various Factorizations
Lesson 13: Application of the Factoring Formula
Lesson 14: Meaning and Solutions of Quadratic Equations
Lesson 15: Solving Quadratic Equations (1)
Solving Quadratic Equations in Lesson 16 (2)
Lesson 17: Applications of Quadratic Equations

Ⅲ Quadratic function
Lesson 18: Graph of the Quadratic Function y=ax²
Lesson 19: Graphs of Quadratic Functions
Lesson 20: Graph of the Quadratic Function y=a(xp)²+q
Lesson 21: Graph of the Quadratic Function y=ax²+bx+c (1)
Lecture 22: Graph of Quadratic Function y=ax²+bx+c (2)
Lesson 23: Finding the equation of a quadratic function