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Grade 9 Math skill guides

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Ten concise guides across Number, Algebra, Data, Geometry and Measurement, and Financial Literacy.

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Number · B2.1

Powers and scientific notation

Evaluate powers and write very large or very small quantities in scientific notation.

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Number · B3.5

Rates, percentages, and proportions

Use rates, percentages, and proportional reasoning to solve everyday problems.

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Algebra · C1.5

Solve and verify equations

Create, solve, and check equations by keeping both sides balanced.

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Algebra · C4.4

Determine equations of lines

Use slope and a point to write and apply the equation of a line.

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Data · D1.2

Represent and analyse one-variable data

Describe a distribution using its centre, spread, shape, and unusual values.

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Data · D1.3

Model two-variable data

Use a scatter plot and a line or curve of best fit to describe association and make cautious predictions.

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Geometry and Measurement · E1.3

Convert and apply measurement units

Choose and convert metric units while preserving the size of the quantity.

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Geometry and Measurement · E1.5

Right triangles and composite shapes

Use the Pythagorean relationship and shape decomposition to solve measurement problems.

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Financial Literacy · F1.2

Appreciation and depreciation

Analyse how an asset’s value increases or decreases by a percentage over time.

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Financial Literacy · F1.4

Build and adjust a budget

Create, modify, and justify a budget when income, expenses, or goals change.

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