Summary
Chapter 10 of the Class 3 Maths NCERT textbook (Maths Mela), "Fun at Class Party!", introduces children to measurement of length through a class party setting, covering informal tools like hand spans, footsteps, and paper strings, comparing lengths, and introducing the metre as a standard unit along with half metre and quarter metre.
- Informal Measurement Tools — Children learn to measure length using hand spans, footsteps, and paper strings before moving to standard units. The chapter shows that different people using the same informal unit may get different measurements, which is why standard units matter.
- Comparing Lengths — The chapter has children compare the lengths of paper strings, string lights, ponytails, and objects to identify the shortest and longest. Activities include drawing strings longer or shorter than a given string and finding objects that fit or do not fit through a door.
- Introducing the Metre — Children discover that a metre is a standard unit used by shopkeepers to measure cloth. They learn to make a one-metre-long rope using a metre rod, and then use it to measure heights, classroom walls, and objects around them.
- Half Metre and Quarter Metre — By folding a one-metre rope in half, children get half a metre, and folding again gives a quarter metre. They then classify objects as less than, equal to, or more than these lengths.
Key points & formulas
- 01Children use hand spans, footsteps, and paper strings as informal measurement tools
- 02Leena and Adi may get different measurements for the same table because hand spans differ from person to person
- 03Shelly and Adi use a thread to measure the table and compare it to the door width before moving it
- 04A metre is introduced as the standard unit of length, made by marking one metre on a rope using a metre rod
- 05Folding a metre rope in half gives half a metre, and folding again gives a quarter metre
- 06Children measure their own heights and classify them as more than or less than one metre
- 07Body-part measurements such as head circumference being 3 handspans or forearm equalling foot length are explored and tested
Frequently asked questions
01What is Chapter 10 of Class 3 Maths Mela about?
It is about measurement of length, set in the context of a class party. Children explore informal tools like hand spans and paper strings and then learn about the metre as a standard unit.
02What informal tools do children use to measure length in this chapter?
Children use hand spans, footsteps, and paper strings to measure lengths of tables, walls, windows, and the classroom.
03Why do Leena and Adi get different measurements for the same table?
Because they use their own hand spans, which differ in size from person to person. This shows why a standard unit like the metre is more reliable.
04How do Shelly and Adi figure out if a table can pass through the classroom door?
They use a thread to measure the breadth and length of the table, and then compare that measurement to the width of the door without lifting the table.
05What is one metre and how do children make a metre-long rope?
One metre is a standard unit of length. Children make a metre rope by placing a metre rod along a rope, marking one metre, and tying knots at both ends.
06What is half a metre and a quarter metre?
Half a metre is made by folding the metre rope in half. Folding it in half again gives a quarter metre. Children use these to classify objects by size.
07How do children measure their own heights in this chapter?
They mark one metre on the wall and stand against it to check if their height is more than or less than one metre, then write their friends names in the correct list.
08What body-part measurements does the chapter explore?
The chapter asks children to check whether their head is 3 handspans round, whether the forearm equals the length of the foot, and whether height equals arms stretched wide open.
09What activity involves string lights in this chapter?
Children look at string lights and help Adi choose the longest one, discussing how they compared the lengths to find the answer.
10What does the paper string activity on the board teach?
Children colour the shortest paper string red and the longest green, and then figure out how many paper strings are needed to decorate the border of the board. This builds comparison and counting skills.
11What hands-on activity helps children estimate one metre?
Children estimate and cut a one-metre-long piece of wool or thread without measuring first, then verify their estimate using the metre rope to see whose guess was closest.
12What jumping activity is in this chapter?
Children draw a start line, mark one metre from it, then jump and record whose jump is more than a quarter metre, half a metre, or a full metre.
More chapters in Maths Mela
Read Chapter 10 of Maths Mela, the Class 3 Mathematics NCERT textbook (2026-27 edition), online for free: the complete chapter as published by NCERT with every diagram, solved example and exercise, with step-by-step solutions, answers and revision notes. Open the NCERT PDF above, or browse all NCERT Class 3 textbooks.
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