Mai Lesson
Wrap It With Less Paper
Math · 30 min · Any age · You and your child together
Discover the math behind gift wrapping! Measure a real gift box, plan the exact sheet of paper it needs, then put your plan to the test. It's a hands-on way to explore geometry and practical problem-solving.
What your child gets out of it
- Measure dimensions of 3D objects accurately.
- Calculate the surface area of rectangular prisms.
- Apply surface area knowledge to a real-world wrapping challenge.
What you need
- Gift box — Choose a small, rectangular box that's easy to measure. (or Cereal box, Shoe box)
- Wrapping paper — A single sheet is usually enough; no need for a whole roll. (or Newspaper, Kraft paper, Printer paper taped together)
- Ruler (or Tape measure, Yardstick)
- Scissors — Adult supervision may be needed for younger children.
- Pencil (or Pen, Marker)
- Worksheet — Print the 'Box Net and Measuring Chart' from your spark pack, or draw a similar chart on plain paper. (or Plain paper)
- Tape — Optional, for securing the wrapped paper. (or Glue stick, Glue)
How it runs
- Introduction · 5 min
- Explore & Plan · 8 min
- Discussion · 6 min
- Activity · 9 min
- Summary · 2 min
Why it matters
Architects calculate surface area to know how much paint or siding is needed for a house, and packaging designers use it to minimize material waste.
Mai is a tutor your child talks to out loud. Open this lesson in the app and she'll run it with them.
Open in Mai SchoolAlready have the app? Tap the link again from your phone and it opens right there.