### Unit 0 – Introduction to Grade 9

Calculating Perimeter of Squares and Rectangles

Khan Academy Practice calculating the perimeter of squares and rectangles

Calculating Area of Squares and Rectangles

Khan Academy Practice calculating area of squares and rectangles. Good refresher!

Khan Academy Practice calculating area of a circle

### Unit 1 – Measurement 2D & 3D

Sec. 1.1-1.2 – Volume and Surface Area of Prisms and Pyramids

### Unit 3 – Exploring Relationships – Lines & Curves of Best Fit

Sec. 3.2 – Relationships and Lines of Best Fit

Khan Academy Practice interpreting linear equations.Â I.e.: if linear trends are increasing or decreasing, identify values of x given a value of y

### Unit 4 – Proportional Reasoning: Ratios and Rates

Khan Academy Practice writing ratios as a simplified fraction. Â Keep in mind, we write “one-half” as “1/2” on the computer.

Sec. 4.2 – More Ratios & Rates – Part 1

Khan Academy Practice solving word problems involving ratios.

Sec. 4.2 – More Ratios & Rates – Part 2

Khan Academy Practice solving more word problems involving ratios and rates.

Sec. 4.2 – More Ratios & Rates – Writing Proportions

Khan Academy Practice setting up proportions BEFORE using “magic circle,” “Y-thingy-thingy,” or logic to solve for the unknown.

Sec. 4.2 – More Ratios & Rates – Solving Proportions

Khan Academy Practice solving proportions usingÂ “magic circle,” “Y-thingy-thingy,” or logic to solve for the unknown.

### Unit 5 – Linear Relations

Sec. 5.3 – Rates of Change (Finding the Slope of a Line)

Khan Academy Practice finding the rate of change (also known as “Slope”) of a linear relation

Sec. 5.4 – More Rates of Change (Finding the Slope of a Line)

Khan Academy Practice finding the rate of change for real world scenarios

Sec. 5.10 – Graphing Linear Relations

Khan Academy Practice graphing linear relations given an equation.

### Unit 7 – Algebraic Models – Making Connections

Sec. 7.3 – Polynomial Basics – Collect Like Terms – Practice 1

Khan Academy Practice collecting like terms with basic polynomials.Â Good refresher!

Sec. 7.3 – Polynomial Basics – Collect Like Terms – Practice 2

Khan Academy Practice collecting like terms with more complex polynomials

Sec. 7.4 – Distributive Property – Practice 1

Khan Academy Practice simplifying expressions using distribution

Sec. 7.4 – Distributive Property – Practice 2

Khan Academy Practice simplifying by adding and subtracting polynomials

### Unit 8 – Plane Geometry

Angles in Triangles – Angle Types

Khan Academy Practice your skills at identifying acute, obtuse, and right angles

Angles in Triangles – Triangle Types

Khan Academy Practice identifying whether triangles are equilateral, isosceles, or scalene

Angles in Triangles – Find Angles

Khan Academy Practice determining the missing angle in each triangle

Angles in Triangles – Complementary & Supplementary

Khan Academy Practice using your knowledge of complementary and supplementary angles

Angle Relationships – F, Z, C Patterns

Khan Academy Practice using your knowledge of F, Z, & C Patterns

Angle Relationships – Solve for Unknown

Khan Academy Practice connecting algebra to geometry.Â Use geometric relationships to solve for an unknown variable.

Angle Relationships – More Difficult 1

Khan Academy Practice more difficult problems which require a firm understanding of different geometric relationships

Angle Relationships – More Difficult 2

Tougher still…

Angle Relationships – Polygons

Khan Academy Practice sum of interior angles of a polygon. Â Recall that a triangle has 180 degrees, quadrilateral has 360 degrees, and for each side you add after that, add 180 degrees. Â In other words, split your shape into triangles and multiply the number of triangles by 180 degrees.

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## About Kyle Pearce

Iâ€™m Kyle Pearce and I am a former high school math teacher. Iâ€™m now the K-12 Mathematics Consultant with the Greater Essex County District School Board, where I uncover creative ways to spark curiosity and fuel sense making in mathematics. Read more.

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