NCERT Joyful Mathematics, Class 2, textbook pages 71–82
How to teach Class 2 Maths Chapter 7, Rani’s Gift, at home
Measuring length and weight, taught with things you already have at home: a 10-minute activity, a game for the week, a 5-day plan and the mistakes to watch for.
NCERT Class 2 Maths Chapter 7 Rani’s Gift: what it teaches
A king’s bed comes out the wrong size because the king and the carpenter used different handspans. That story is the whole lesson: we need a unit everyone agrees on. Your child measures with a book, blocks or a pencil, compares paths, and compares weights on a home-made balance.
Why it matters later. The idea of a standard unit is why centimetres, metres and kilograms exist. Class 3 introduces rulers and weights; this chapter explains why they are needed.
See it: this chapter in pictures
You need
- a textbook or notebook to measure with
- a thread
- a clothes hanger, two paper cups and string for a balance
- vegetables from the kitchen
Tonight’s 10 minutes
- Measure the dining table with your handspan and your child’s. Talk about why the answers differ.
- Measure the same table with a notebook laid end to end. Now you both get the same answer.
- Lay a thread along two paths on paper to see which one is longer.
- Make the hanger balance. Compare a potato and an onion, then a carrot and a tomato.
Words to use
- longer
- shorter
- longest
- heavier
- lighter
- heaviest
- balance
- estimate
Watch for
- Believing the bigger vegetable is always heavier. Put a big, light thing against a small, heavy one on the balance.
- Leaving gaps or overlaps when measuring with a book. Mark where the book ends with a finger before moving it.
What it sounds like at home
A short example of the conversation. Your words will differ; the questions are what matter.
YouYour table is 7 handspans, mine is 5. Who is right?
Your childBoth?
YouWhy are they different?
Your childYour hand is bigger.
YouWhat could we both use to get the same answer?
Your childThe maths book!
A game for this week: Balance guess
- Make a hanger balance with two paper cups.
- Pick two things from the kitchen.
- Both of you guess which is heavier.
- Test it. Correct guess scores a point.
A 5-day plan, 10 minutes a day
- Day 1Handspan the table: yours and your child’s.
- Day 2Measure with a book to agree.
- Day 3Compare paths with a thread.
- Day 4Make the hanger balance.
- Day 5Balance guess game.
Everyday moments to practise
- Which bag is heavier to carry back from the market?
- Which path to school is shorter?
- How many books long is your bed?
- Weighing vegetables at the shop.
Quick check
Ask these at the end of the week. Tap to see the answer.
Why did the king and the carpenter get different bed lengths?
Their handspans were different sizes.
On a balance, which side goes down?
The heavier side.
A path that curves between two points: longer or shorter than a straight path?
Longer.
Ready for the next chapter when your child…
- Explains why handspans give different answers.
- Measures with an object without gaps.
- Uses a balance to find the heavier thing.
Activities, wording and illustrations are Mathify Kids’ own, following the topics of NCERT’s Joyful Mathematics (Class 2). See the full Class 2 parent guide for every chapter.
Questions parents ask
What is taught in Rani’s Gift?
Measuring length with non-standard units (handspans, books, blocks), comparing paths, and comparing weights.
How do I make a balance at home?
Hang two paper cups from the ends of a clothes hanger with string. The side that goes down holds the heavier thing.
Why not use a ruler yet?
Children first need to see why a common unit matters. Rulers come in Class 3.