How Engineers Choose the Best Solution

Crash Course Kids

This educational video continues an exploration of the engineering design process by focusing on the critical phase of evaluating potential solutions. Following up on a previous brainstorming session about how to cross a deep gorge, the host guides viewers through a logical assessment of three proposed ideas: a balloon airlift inspired by the movie 'Up', a Mary Poppins-style umbrella float, and a hang glider made from a tent. The video systematically tests each idea against specific criteria, weighing strengths (pros) against weaknesses (cons) to determine feasibility and safety. The content highlights key engineering concepts such as defining strengths and weaknesses, thinking logically, and the importance of safety in design. It emphasizes that while creative brainstorming encourages 'wild' ideas, the evaluation phase requires grounding those ideas in reality and physics. The narrative demonstrates that not all solutions are created equal and that engineers must rigorously question their designs before moving to the testing phase. For educators, this video serves as an excellent model for teaching critical thinking and decision-making skills within STEM curricula. It moves beyond simple brainstorming to the more analytical aspect of engineering, showing students how to critique their own ideas without discouragement. The clear use of checklists and visual demonstrations makes abstract evaluative processes concrete, helping students understand why testing and iteration are essential parts of solving problems effectively.