Shopping Shelf
Compare Items
Box A
Breakfast Flakes A
Box B
Breakfast Flakes B
Double-Number Line Elevator (Interactive Scaling Scale)
Quest 1: Cereal Rate Duel
Slide the scaling double-number line to division 1 to find the 1-ounce unit rates for Box A and Box B, then select the "Better Buy" to proceed!
Unit Rate
Tasa Unitaria — Price for exactly one unit (e.g. 1 ounce)
Double-Number Line
Línea Numérica Doble — A visual model showing equivalent ratios side-by-side
Better Buy
Mejor Compra — The item with the cheaper unit rate
"To find the unit rate, we divide the total cost by the number of ounces."
"Para hallar la tasa unitaria, dividimos el costo total entre la cantidad de onzas."
* Diagnostics console active. Unit rates online...