simSchool is a game-based, virtual, and interactive tool that allows pre-service teachers to acquire new skills while constructing knowledge through experimentation with learning situations. Pre-service teachers develop know-how--or heuristic knowledge--through repeated practice in the "Personality Plus Higher-Order Thinking" module to discover insights about personality traits in teaching and instructional levels of critical thinking. This article is an introduction, overview, and example of a simSchool module. It will illustrate how pre-service teachers can construct their own knowledge through the simSchool experience with various outcomes in the development of heuristic knowledge and suggest future work to enhance the benefits of simSchool in teacher education.