Yale University
Airplane Mathematics
The history of aerodynamics is rich with experimentation and international collaboration. Author Joyce Bryant relays this dynamic past and provides math word problems using the formula of lift, the force that makes airplanes fly. She...
Curated OER
Rain On
Fourth graders study the water cycle and clouds. In this water cycle and cloud lesson, 4th graders determine the definition of condensation and watch a demonstration in which the teacher makes a cloud in a bottle. They discuss the water...