Curated OER
Food for Thought
In this food facts activity, 4th graders read and interpret a short history on tin cans, Wonder Bread, ToastMaster, Nicolas Appert and Charles Strite. Students answer five word problems.
K12 Reader
The Metric System
How did the metric system come to be, and why does the US not use it very much? Your class can learn the answers to these questions with the reading passage included here and then respond to the five related questions.