Four simulations were created at Iowa State University to support learning in a large-lecture introductory meteorology class. AdvectionSim simulates warm and cold air advection in the United States. It allows users to vary wind speed and direction in Ames, Iowa. The results show how the temperature gradient would change over a matter of time given the wind speed and direction. BudgetSim simulates the energy intake of our atmosphere during the day and the loss of energy at night. Users can vary the intensity of the sun during the day. A tub of water fills up, symbolically showing the energy intake of our atmosphere. MountainSim simulates the difficult concepts of adiabatic processes. A leaf symbolizes a parcel of air rising over the Mountain...