No. 651Ages 11 to 14
Introducing Ratio
What a ratio is, how to read the colon notation, and the difference between part to part and part to whole.
No. 652Ages 11 to 14
Simplifying Ratios
Divide by the highest common factor to write any ratio in its simplest form, converting units first.
No. 653Ages 11 to 14
Sharing an Amount in a Ratio
The parts method for splitting an amount in a given ratio, shown with a clear bar model.
No. 654Ages 11 to 14
Direct Proportion
The unitary method and the straight-line graph through the origin that defines direct proportion.
No. 655Ages 11 to 14
Scaling Recipes
Use a single scale factor to grow or shrink a recipe, a friendly real-world use of proportion.
No. 656Ages 11 to 14
Percentages of Amounts
Benchmark methods and the decimal multiplier for finding any percentage of an amount.
No. 657Ages 11 to 14
Percentage Change
Increase and decrease as a percentage of the original, plus the multiplier shortcut.
No. 658Ages 11 to 14
Best Buys and Value for Money
Compare price per unit to decide the better buy, a proportion skill for every shopping trip.
No. 659Ages 11 to 14
Scale Drawings and Map Scales
Convert between map and real distances using ratio scales, with the unit conversions you need.
Type or write inNo. 660Ages 11 to 14
Ratio Practice Worksheet
Eight mixed questions across the whole pack with write-in space and a full answer key.