Growth & Development
📋 What it is
Living things grow by cells dividing; humans develop through predictable stages.
🗣️ Coach says
You didn’t grow by cells getting bigger — you grew by cells COPYING and dividing (one becomes two, two become four). Growth follows stages: infancy, childhood, adolescence, adulthood. Each stage brings predictable changes driven by your body’s instructions.
🧠 Memory hook
Growth = cells dividing, not swelling. One cell → two → four → you.
😂 Giggle
Why did the plant go to the therapist?
It had too many deep-rooted issues!
😲 Whoa!
You started as a SINGLE cell. That one cell divided again and again to become the 37 trillion-cell you reading this.
✅ Quick check: How does a living thing get bigger — cells swelling up, or cells dividing?
Say your answer out loud first — then reveal.
Cells dividing — one cell copies itself into two, over and over, adding more cells.
Growth in organisms comes from cell division (mitosis), not individual cells enlarging indefinitely.
🧪 Try it! (2 minutes)
Fold a paper in half, then half again, and again. Watch the layers double each time — that’s how fast cell division adds up.