Data Handling — Pictographs Notes & Questions | Class 4 Mathematics | Drishti OS

Data Handling — Pictographs

What you'll learn

Read a pictograph where each symbol represents a fixed number of items (the "scale" or "key").
Calculate the value shown by counting symbols and multiplying by the scale.
Compare categories and find totals from pictograph data.

Key concepts

Level 1 — What is a pictograph?

Verbal: A pictograph uses pictures or symbols to show data, where each symbol stands for a fixed number of items, shown in a key (e.g. 🍎 = 5 apples).

Level 2 — Reading values

Symbolic: If the key says 1 symbol = 10 books, and Monday shows 4 symbols, then Monday's value = 4 × 10 = 40 books.

Level 3 — Comparing categories

Example: If Tuesday shows 6 symbols (60 books) and Wednesday shows 3 symbols (30 books), Tuesday has 60 − 30 = 30 more books than Wednesday.

Level 4 — Finding totals

Example: Monday = 40, Tuesday = 60, Wednesday = 30. Total for three days = 40 + 60 + 30 = 130 books.

NCERT anchor: Math-Magic 4, Ch 14 — Smart Charts (reading and drawing pictographs and bar graphs).

Worked example

A pictograph key shows 1 symbol = 5 mangoes. Monday has 3 symbols, Tuesday has 5 symbols. How many mangoes are shown for Tuesday, and how many more than Monday?

Step 1 — Monday's value: 3 × 5 = 15 mangoes.
Step 2 — Tuesday's value: 5 × 5 = 25 mangoes.
Step 3 — Difference: 25 − 15 = 10.
Answer: Tuesday shows 25 mangoes, which is 10 more than Monday.

Common mistakes

Mistake	Why it happens	Fix
Counting symbols but forgetting to multiply by the scale	Treating "number of symbols" as the answer	Always multiply symbols × key value
Using the wrong key value	Misreading the pictograph key	Check the key carefully before calculating any value
Adding symbol counts instead of the actual values	Mixing up symbols and real quantities	Convert each category to its real value first, then add/compare
Ignoring a half-symbol	Not knowing how to read partial symbols	A half symbol usually means half the key value

Quick check

Key: 1 symbol = 4 toys. 5 symbols shown for "Cars". How many cars? (20)
Key: 1 symbol = 10 pens. Class A: 3 symbols, Class B: 5 symbols. How many more pens does Class B have? (20)
Key: 1 symbol = 2 birds. 3 days show 4, 3 and 6 symbols. What is the total number of birds? (26)
If half a symbol appears and the key is 1 symbol = 10, what value does the half symbol show? (5)
Stretch: Key: 1 symbol = 5 flowers. Monday = 6 symbols, Tuesday = 4 symbols, Wednesday = 8 symbols. Find the total and the day with the fewest flowers. (Total = 90; fewest on Tuesday)

Revision tip: Make your own mini pictograph at home — count fruits in the kitchen and draw one symbol for every 2 fruits.

Open the Practice tab for graded questions on Pictographs.

Data Handling — Pictographs