Curated OER
What to Do with a $20 Bill Besides Spend It
Students explore the concept of anti-counterfeiting measure. In this economics lesson, students use science equipment to discover anti-counterfeiting designs. Students then explore other denominations of bills.
Curated OER
Beach Sands of the World
Students examine a variety of sand samples from throughout the world. On an index card, they write the characteristics of the sand and draw what the grains look like to use during the activity. Using a map, they practice plotting...