Reddit reviews Engineering Design: A Project-Based Introduction

I think the most important skill is teaching them the design process. In our Intro to Engineering class in college we mainly just learned how to accurately describe the problem, present solutions to the problem, and select the best solution to that problem.

Our professor wrote this book, which is a good introduction to the methodology.

https://www.amazon.com/Engineering-Design-Project-Based-Introduction-Clive/dp/1118324587/