Perkins School for the Blind
More or Less
The concept of more or less is one that needs to be mastered prior to learning other concepts such as quantitative analysis, addition, or subtraction. This activity provides several ways to teach learners with low or no vision to...
Curated OER
THE TRAVELS OF BABAR: An Adventure in Scale :Building a Model Hot Air Balloon
Young scholars encounter basic facts about helium and hot air. They compare the weight and size of different materials. Students work collaboratively in teams. They create their own model balloon.
Curated OER
Wing Shapes and Areas
Students, after reading the explanation given below, use FoilSim to determine the weight of the aircraft that can be lifted by a pair of wings of each type. They also design a unique platform of a wing to lift a plane weighing 11500 pounds.