Ratios, Rates & Proportions · grades 6–8
Ratios, Rates & Proportions.
Proportional reasoning, one step at a time — ratios, unit rates, best buy, solving proportions by cross-multiplying, the constant y = kx, and scaling & similar figures. With ratio tables, a double number line, and an engine-graded pad.
Ratios
Compare two quantities.
Rates & unit rates
Per one.
Proportions
Two equal ratios.
Proportional relationships
y = kx.
Scaling & similar figures
Scale up, scale down.
Capstone
Pick the tool.