Chapter 11 · NCERT Class 2 Joyful Mathematics

Data Handling

Ask your friends their favourite fruit, sort the answers, count with tally marks, and draw a picture chart. Then you can tell which fruit wins! Tap each idea to explore.

🔷 3 topics⏱ ~15 min📝 7-question quiz

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Six data ideas

Collecting, sorting, tally marks and picture charts. Tap each word to see a simple example.

Explore · Data handlingtap a word

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The three big ideas

Data is information we collect, like everyone’s favourite colour.
First we collect the answers, then we sort them into groups.
Sorting makes the data tidy and easy to count.

Let's try. You ask 5 friends their pet: cat, dog, cat, fish, cat.

Sort them: cats (3), dog (1), fish (1).

Tally marks are little lines we draw to count things one by one.
We draw four lines, then a fifth line across them to make a bundle of five.
Bundles of five are quick to count: five, ten, fifteen…

Let's try. Show 7 with tally marks.

One bundle of five (four lines crossed) and two more lines: that is 5 + 2 = 7.

A pictograph uses small pictures to show how many — each picture stands for one thing.
The row with the most pictures has the biggest number; the one with the fewest has the smallest.
We can compare rows to answer questions about the data.

Let's try. Cats 🐱🐱🐱, Dogs 🐶, Fish 🐟. Which pet is the most?

Cats have 3 pictures, the most — so cat is the favourite pet.

Watch out: in a pictograph, count the pictures carefully — each one stands for the same number.

Where you’ll meet it

Data around you

Class survey

Asking which game friends like best and making a chart is real data handling.

Counting birds

Watch birds at a window and use tally marks to count how many of each kind visit.

Weather chart

Mark each day sunny, cloudy or rainy, then see which kind of day there was most.