About Unit Rates
Discover the unit rate while shopping for fruits, vegetables, and candy. Construct a double number line and look for patterns. Challenge yourself on the race track as you compare cars with different rates!
How to play Unit Rates
Everything is hands-on: drag, click and experiment — the simulation reacts instantly. Discover the unit rate while shopping for fruits, vegetables, and candy.
Questions & answers
- What is Unit Rates?
- Unit Rates is a free interactive simulation from PhET Interactive Simulations (University of Colorado Boulder) that you can play right in your browser on crumble.lol — no downloads and no sign-up. Discover the unit rate while shopping for fruits, vegetables, and candy. Construct a double number line and look for patterns.
- What can kids learn from Unit Rates?
- It helps kids explore: interpret ratios of mixed units (e.g. $/lb) define the unit rate and determine a method to calculate it predict how changing the numerator or denominator of a rate will affect the unit rate use the double number line to reason about rates and solve real-world problems develop strategies to use the unit rate to solve problems compare unit rates between two simultaneous situations.
- What age is Unit Rates good for?
- It is designed for middle school (roughly ages 10–14) up to high school, and curious kids outside that range can absolutely enjoy poking around it too.
- Is Unit Rates free to play?
- Yes — Unit Rates is completely free on crumble.lol and runs fully in your browser on computers and tablets.