Curated OER
A Model Solar System
If Earth is modeled by a grapefruit, what planet could be represented by a golf ball? This activity uses everyday and not-so-everyday objects to create a model of the Solar System.
Curated OER
Problem Solving: Work Backward
In this problem solving worksheet, 4th graders solve each of 6 word problems by working backwards. They use the strategy while working with money and decimals.