Simulation and Modeling are forms of Abstraction.
- Programming: The Android Mash app simulates the traditional Whack-a-Mole game by introducing App Inventor's Image Sprite component and the concept of randomness. The Coin Flip tutorial introduces the concept of modeling, using App Inventor's random number functions to create a simulation of a coin flip. This is extended into an activity that tests whether flipping a coin many times leads to a 50:50 distribution of heads and tails.
- CS Principles: The CS Principles lessons in this unit focus on modeling, ending with some readings and discussions of real-world models for weather, the solar system, and casino slot machines.