National Geographic
Measuring Elevation Past and Present
After viewing a short video about a climb up Mount Everest, high schoolers read about triangulation for measuring distant elevations. Have your class work in groups to construct an inclinometer and then use it to measure the height of...
Curated OER
Which Side Is Which?
Students study the Louisiana Purchase and the journey of Lewis and Clark. They examine the Peace Medal nickel to differentiate between the heads side and tails side. They participate in a coin flip activity, graph the results and analyze...