Pathfinder Optimization Slides
Slide deck for Lesson 4, focusing on trigonometric optimization and physical pathfinding. Covers the Lifeguard Problem, Snell's Law derivation from Fermat's Principle of Least Time, and angle-based optimization in viewing and structural design.
Trig Tactic Worksheet
Student worksheet for Lesson 4, focusing on pathfinding (Lifeguard Problem) and angle maximization (Gallery Problem) using trigonometric calculus. Requires the use of chain rule and inverse trigonometric derivatives.
Lifeguard Logic Teacher Key
Detailed answer key for Lesson 4, featuring full calculus derivations for the pathfinding and viewing angle problems. Includes the Snell's Law conceptual check, numerical solutions, and a grading rubric.