Mai Lesson
Paper Folds to Moon
Math · 30 min · Any age · You and your child together
Challenge your understanding of size and scale by exploring how quickly paper thickness grows when folded. Discover the surprising power of doubling and use simple visual models to track this incredible growth, leading to an astonishing reveal about reaching the Moon.
What your child gets out of it
- Predict and test how physical dimensions change with repeated actions.
- Use bar models to visually represent and track exponential growth.
- Understand the surprising impact of doubling quantities over time.
What you need
- Paper — Any rectangular piece of paper will do. Thinner paper might allow more folds. (or Paper napkin, Sheet of printer paper, Newspaper page)
- Ruler (or Tape measure, Stack of coins (for relative thickness))
- Pencil (or Pen, Crayon)
- Notebook — For drawing bar models and recording observations. (or Any scrap paper, Whiteboard)
How it runs
- Your Breakfast Paper · 5 min
- Explore & Plan · 8 min
- Discussion: The Power of Doubling · 6 min
- Modeling the Folds · 9 min
- The Moon Shot · 2 min
Why it matters
The principle of doubling is used in finance (compound interest), biology (cell division), and even understanding how quickly news spreads online.
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