This lesson asks students to develop strategies for matching genetic characteristics with environmental conditions to optimize the growth of the Pacific yew tree, which is a threatened species. Student teams will propose and analyze a breeding program, using simulation analysis. This lesson helps students gain a deeper understanding of the engineering design process and how it may be applied within the biological unit of heredity. The first goal is to introduce the engineering design process by having students produce a process technology (in this case a breeding program for trees).. A second goal is to develop mathematical thinking skills through data analysis as students work through their design plans and run simulations to allow for the plan to be evaluated. The lesson is recommended to be done within a heredity unit. A materials list, teacher background information, assessments, and outcomes are provided. This book selection includes the Table of Contents, Introduction, Contributors, About the Authors, References, Image Credits, and Index.