Zero ✰

Introduce zero as the most important invention in human history—a number representing "nothing" that allows us to calculate everything.

Explain that modern digital technology is built entirely on a foundation of 1s and 0s (on/off, true/false). Introduce zero as the most important invention in

Mention zero’s role in absolute zero ( Introduce zero as the most important invention in

) as a number in its own right, establishing rules for arithmetic involving zero (e.g., Introduce zero as the most important invention in