Grade 9 Math
Lessons & Practice
Short video lessons, fill-in notes and a workbook for every topic, plus self-checking quizzes. Everything is free, with no account needed.
Lessons
Work through them in order, or jump to the topic you need.
Exponents and Exponent Laws
What exponents mean, the exponent laws, zero and negative exponents.
Polynomials. Algebraic Expressions
Classify polynomials and simplify expressions by collecting like terms.
Distributive Property and Common Factoring
Expand with the distributive property, then reverse it to factor.
Solving Linear Equations With Brackets
Solve multi-step equations that include brackets.
Linear Relations. Distance-Time Graphs
Read and describe distance-time graphs and the stories they tell.
Linear Function. Slope of a Line
Find slope as rate of change and write the equation of a line.
Surface Area and Volume. Pyramid and Cone
Calculate surface area and volume of pyramids and cones.
Free resources
More help for Grade 9.
Questions parents and students ask
Is Grade 9 math in Ontario still de-streamed?
Yes. Grade 9 math is one course (MTH1W) for all students. These lessons follow its strands: number, algebra, linear relations, analytic geometry and measurement.
Is IntoMath free? Do I need an account?
Everything on IntoMath is free, and you don’t need an account. Just open a lesson or quiz and start.
How should I use a lesson?
Watch the video and fill in the notes as you go. Then do the workbook questions and check yourself with a quiz.