THE BIG IDEA
REMEMBER THIS
Three things to remember
LESSON EXPLAINED
See how every part works
Attributes & properties (settings)
Values that set the look, size, text, layout, and current state.
Functions & methods (actions)
Code actions that create, read, change, and show the screen.
Events & callbacks (reactions)
How the app reacts to clicks, typing, timers, and other actions.
What runs first
The order used to build the example and make it work.
Words to know
Every code line explainedOpen a simple guide to the starter code
QUICK CHALLENGE
KNOWLEDGE CHECK
Lock in what you learned
Twenty questions, shown one at a time. Check your answer to unlock the next question.