Grade 7 math
Ages 12-13. 10 topics, each linked at the difficulty this grade normally uses. Nothing here is locked to the grade — follow a topic up or down as needed.
Topics in grade 7
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Percentages
Percent of a number, percent change, and moving between fractions, decimals and percents.
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Ratios and proportions
Ratio notation, equivalent ratios, unit rates and proportional reasoning problems.
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Integers and negative numbers
Number lines below zero, absolute value, and the sign rules for all four operations.
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Pre-algebra
One-step equations with a letter in them, and undoing an operation to solve.
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Algebra
Two-step equations, and undoing the steps backwards to find the unknown.
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Order of operations
Brackets, exponents and left-to-right rules, with the classic traps kids fall into.
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Angles
Naming angles by sight, and working out angles on a line and in a triangle.
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Area, perimeter and volume
Perimeter and area of rectangles, squares and right triangles, and the volume of a box.
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Statistics
Mean, median, mode and range, and which average actually answers the question.
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Probability
How likely an event is, written as a fraction between impossible and certain.