Curated OER
Looking into Eratosthenes' Radius of the Earth
Pupils, in small groups, research Eratosthenes and his calculations of the Earth's radius. They write a summary of the person, the experiments and his calculations to determine how accurate Eratosthenes was in his estimations of the size...
Curated OER
Help! I'm Under Too Much Pressure!
Students play with a ping pong ball sized piece of modeling clay observing what happens to the clay as they play with it and write their observations in their notebooks. They share the results of their observations introducing the term...
Curated OER
Space Ship Pilot
Students visualize the relationship between acceleration and velocity as they maneuver a model spaceship in a 2-dimensional applet.