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Mission 3 of 12

Math-to-CS Bridges

📋 What it is

Computer science is applied maths — logic, patterns, binary numbers and algorithms.

🗣️ Coach says

Computers are maths machines. They think in binary (base-2), follow step-by-step algorithms (like a maths procedure), and spot patterns. Learning the maths behind code makes coding click.

🧠 Memory hook

Code = maths + logic. Binary is base-2; an algorithm is a maths recipe of steps.

😂 Giggle

Why did the fraction cross the bridge?
To get to the other denominator!

😲 Whoa!

Everything on a computer — text, photos, music — is stored as 0s and 1s, a number system with just two digits.

✅ Quick check: Computers count in base-2 (binary). How many digits does binary use?

Say your answer out loud first — then reveal.

🧪 Try it! (2 minutes)

Write the numbers 1, 2, 3 in binary (1, 10, 11) and notice the place-value pattern.

⭐ Do the round to earn your star →
🤸 Brain break: Binary-hands: show 0 (fist) and 1 (finger), and "count" 1, 10, 11.