Unit rates – unit price and speed
MathematicsAlgebraAges 12–13
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Sign in to playThree screens: in Market, drag oranges, mangoes, vegetables, cookies and sweets onto a scale to work out the unit price and read a double number line; in Set price, students choose their own unit price and convert back and forth between quantity and cost; in Race, two vehicles travel at different speeds so you can compare distance/time rates and see which one finishes first. Based on the "Unit Rates" simulation by PhET Interactive Simulations, University of Colorado Boulder (CC BY 4.0); rewritten.
Lesson: Direct proportion
How to use
Parameters you can change
- Screen Market, Set price, Race
- Default item (Market) Orange, Mango, Water spinach, Carrot, Cookie, Candy, Steamed bun
- Starting unit price (Set price) 1–50 USD
- Finish distance (Race) 10–100 km
- Show double number line
