Lesson 4 — Obstacles, Timers and Game Over

Level: Warrior — roughly Grade 8 / ages 13–14 Duration: 35–45 minutes Format: Write HTML/CSS/JS with live preview in the browser Concept: A game-state variable controls whether play continues, and rising difficulty keeps players coming back

Learning Objective

Kids add an obstacle, a countdown and an end condition, and can explain how rising difficulty shapes fun.

Do It Together (Parent-Child Co-participation)

Let a parent play three rounds and say "too hard / too easy" while your child tunes the speed and timer — that is a real playtest.