Activity 01
Pair Programming: Key Press Dodge Game
Pairs create a sprite that moves left or right when arrow keys are pressed to dodge falling objects. One partner codes the event blocks while the other tests and suggests changes; swap roles after 10 minutes. End with a class share-out of best features.
Analyze how different events can initiate actions in a Scratch program.
Facilitation TipDuring Pair Programming, circulate and ask each pair to explain which event block controls their sprite’s movement before they test it, reinforcing the connection between code and outcome.
What to look forProvide students with a simple Scratch project that uses 'when key pressed' and 'when sprite clicked'. Ask them to write down: 1. Which event block makes the sprite move left? 2. Which event block makes the sprite say 'Hello!'? 3. What would happen if we changed the 'when key pressed' to 'when green flag clicked'?