On the bench · not built yet

Unit Ladder

Climb a conversion ladder (feet to inches, kilograms to grams) against the clock with a conversion table that unlocks as you go.

Play style: Race
Module: Measurement Conversions: Convert units within one system; area and perimeter formulas
Grade: Grade 4 · Math
Standards: 4.MD.A

Nearby on the shelf

Compare animals and plants: "times as tall" vs "taller by." Sliders show the difference between additive...

Plant numbers as rectangular gardens; primes only grow in a single row. Find every shape for 36.

Numbers go in, numbers come out; guess the rule, then build one for classmates to crack.