How to play
You're racing a go-kart that runs on a two-colour fuel mix. Every round shows the mix ratio and how much of one fuel is already in its tank — tap the number tile that keeps the ratio true, and the second tank fills to match while the kart surges down the track. Fifteen correct mixes cross the finish line; a wrong tile costs a life, so read the ratio before you tap. Mixtures grow from 1:2 through 3:7, then on to proportion equations and real-world recipe and map-scale problems.
What your child will learn
- Understand proportional relationships
- Identify equivalent ratios
Skills practiced
- Multiplicative reasoning
- Proportional thinking
Why this age range
Designed for grades 5–6 because ratios sit squarely in those years (CCSS 6.RP). The game presumes fraction fluency and basic multiplication, both of which should be solid by grade 5. Younger children can play the easiest mixtures but won't get the proportional reasoning that's the point.
Curriculum standards
- CCSS.MATH.6.RP.A.1
- CCSS.MATH.6.RP.A.3
Notes for parents
Ratios are usually a fifth-grade ambush — the topic feels like new territory after years of straightforward arithmetic. Ratio Rally builds on the part-whole intuition the child already has from fractions: 3:1 is the same as "three of every four canisters are blue." Pointing this out ("that's just three-quarters!") pulls ratios into the kid's existing fraction knowledge instead of treating them as a new species.