Flattening the Round
by Anonymous · ⭐ 1 · 🍴 0
What happens when we transfer our spherical Earth onto flat paper? 🍊 An orange peel can’t lie flat without tearing—and Earth is the same. If we force it flat, some places stretch. Choose a latitude: the Equator stays the same, but around 80°, the width stretches nearly sixfold! ⚖️ That’s why Greenland looks so huge. Compare true area (green) with map size (orange): of the four lands, the one that’s truly smallest looks second-largest on the map. 🧭 Finally, tap the three maps. Preserve area and shape gets distorted; preserve shape and area gets distorted. Can you find a map that preserves all three? This app was made with code too · Remix it and compare our country’s size!
Ready to remix — hit the 🍴 Remix button below. You'll sign up first, then this app is copied into your workspace.
About this app
Flattening a Round Thing is an interactive geography lesson about map projections and the distortions created when Earth is transferred from a globe to flat paper. Explore how horizontal stretching increases toward the poles, compare the real and map-displayed sizes of Africa, Greenland, India, and Australia, and examine which properties different map types preserve. The app shows why no flat map can preserve area, shape and distance perfectly at the same time.
Use cases
- Elementary students learning about Earth and maps
- Teachers introducing map projections in geography lessons
- Families exploring why Greenland looks unusually large on some maps
- Learners comparing real land area with map size
Features
- Interactive latitude selector showing stretching from the equator toward the poles
- Step-by-step challenges about latitude and map distortion
- Side-by-side comparison of real area and displayed map size for four land regions
- Map projection activity covering equal-area, true-shape and true-distance maps
- Explanations of what each map preserves and what it distorts
- Reset, next-step and sound controls