Curated OER
Coupon Clippers: Understanding Comparative Shopping
Third graders participate in a shopping spree after listening to Pigs Go to Market: Fun with Math and Shopping. After the story is read aloud, 3rd graders answer discussion questions and review key vocabulary. Students complete provided...
Curated OER
Population Ratios
Students access web site and record various population statistics pertaining to a county in the USA of their choice. They use this data to set up and solve ratios. They compare data to make meaning of the numbers.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Babylonian Number System
Dr. Math takes on a question about the Babylonian base-60 math system, explaining how a sexagesimal system looks and works in comparison with our decimal (base 10) system.