Lower secondary
Grade 9
The roadmap: 10 chapters in the Vietnamese curriculum.
The lessons for this grade are being written. Try the complete Grade 10 course
Chapter 1
Linear equations and systems in two variables
Chapter 2
Linear equations and inequalities in one variable
Chapter 3
Square roots and cube roots
Chapter 4
Right-triangle trigonometry
Chapter 5
Circles
Chapter 6
The function y = ax² and quadratic equations
Chapter 7
Frequency and relative frequency
Chapter 8
Probability in simple models
Chapter 9
Circumscribed and inscribed circles
Chapter 10