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Mobile Development
Explorer (Ages 8-12)
App Design Principles
Great app design is clear, fast, and forgiving. Big buttons, simple flows, easy undo, fast load — every detail counts.
15 min
+15 XP
Building with MIT App Inventor
MIT App Inventor lets you build real Android apps with drag-and-drop blocks. Free, in your browser, perfect for beginners.
15 min
+15 XP