Curated OER
Stamping Coins
Learners demonstrate that they can use a variety of coin combinations to make a single amount. They study all the ways to make 50 cents using coins using different coins.
PBS
Pbs Learning Media: Logical Leaps: Fractions, Mixed Numbers, and Decimals on the Number Line
n this interactive, students use logic to solve three riddles involving a frog jumping contest and then place the contestants' jumps at the correct points on the number line.