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Stop 5 of 8

Islamic Geometry & Algebra

📋 What it is

Scholars in the Islamic Golden Age founded ALGEBRA and created intricate geometric TESSELLATIONS — patterns that tile a surface with no gaps.

🗣️ Coach says

The words tell the story: "algebra" comes from al-Khwarizmi’s book (al-jabr), and "algorithm" comes from his name. Artists of this era, focusing on geometry, built dazzling tessellations — shapes repeated to cover a wall with no gaps or overlaps. Math and art were one subject: symmetry, angles, and tiling.

🧠 Memory hook

Al-Khwarizmi → "algebra" AND "algorithm". Tessellation = tiles a surface with NO gaps or overlaps.

😂 Giggle

Why did the Egyptian mathematician love the Nile?
Because it had so many natural divisions!

😲 Whoa!

The word you use for a computer’s step-by-step recipe — "algorithm" — is literally the name of a mathematician from over 1,200 years ago.

✅ Quick check: What does it mean for shapes to TESSELLATE?

Say your answer out loud first — then reveal.

🧪 Try it! (2 minutes)

Find a real tessellation (floor tiles, a honeycomb, a chessboard) and check: any gaps? any overlaps?

⭐ Do the round to earn your star →
🤸 Brain break: Symmetry stretch: make a shape with your hands, then mirror it exactly on the other side.