THE LEARNING SHELF
Start where you are.
A short guide for the step that is not quite clicking yet.
Start here
Solving proportions
Turn two equal ratios into one simple equation, then check your answer.
Keep handyFormula reference
Find a, b, c, or d without losing track of the diagonal products.
Build confidenceFractions & mixed numbers
Keep exact answers, simplify at the end, and avoid early rounding.
Number senseDecimal proportions
Convert finite decimals exactly and decide when rounding belongs.
Understand the ideaEquivalent ratios
See why 2:3 and 8:12 describe the same relationship.
Apply itWord problems
Translate units into matching positions before you calculate.
Beyond homeworkRecipe scaling
Adjust ingredient amounts for a different number of servings.