This document describes a simulation called "Ecotonos" that is used to engage participants in multicultural problem solving. The objectives are to understand how culture impacts decision making, experience the emotions involved in multicultural collaboration, and develop strategies for effective cross-cultural problem solving. The simulation involves dividing participants into cultural groups who must solve a problem related to designing a community space while following cultural rules. Participants then debrief their experiences in mono-cultural and multicultural settings. The goal is to gain skills in negotiating across cultural differences and incorporating multiple perspectives.