Fun at Class Party! explores length measurement as Class 3 students decorate their classroom using handspans, footsteps, arm lengths and paper strings. Children discover why non-standard body units vary from person to person, and learn to use a standard 1-metre rope (and half-metre / quarter-metre folds) to measure classroom objects.
What Class 3 Mathematics Chapter 10 Covers
Informal Units of Length: Measuring tables, doors and blackboards with handspans, footsteps and cubits
Why Standard Units are Needed: Comparing Leena’s and Adi’s handspan counts on the same table
The Metre Rope: Making a 1-metre string with a metre scale and folding it into half-metre and quarter-metre lengths
Estimating Lengths: Deciding whether everyday objects are longer than, shorter than or equal to 1 metre
Exercises in Chapter 10
- Let us Do (Pages 128–133): Compare lengths of decorations and measure classroom objects using handspans and paper strips.
- Let us Play & Metre Activities (Pages 133–138): Check body-length comparisons and classify objects as more than or less than a metre.
Read Class 3 Mathematics Chapter 10 Online
More Chapters
- Previous: Chapter 9: House of Hundreds – II
- Next: Chapter 11: Filling and Lifting
- Hindi medium: Class 3 Maths Chapter 10 PDF in Hindi (Ganit Mela)
- All Mathematics chapters and the other Class 3 books: Class 3 NCERT books 2026-27
- All Class 1 to 12 NCERT Textbooks: NCERT Books PDF (Class 1–12)
- Every book chapter by chapter: NCERT chapter wise PDF
FAQ
Why do two people get different handspan measurements for the same table?
Because hand sizes differ; a person with a smaller handspan needs more spans to cover the same length.
How can you make a half-metre measure from a 1-metre rope?
Fold the 1-metre rope so its two ends meet equally; the folded length is half a metre.