Collecting Data (Grade 1)
Collecting data means gathering information by counting, asking questions, or observing things around us. In Class 1, children learn to collect simple data like counting how many children like mangoes, how many like apples, and so on.
After collecting data, we can organise it in a table or use tally marks to keep count. This is the first step in data handling.
What is Collecting Data (Grade 1) - Class 1 Maths (Data Handling (Grade 1))?
Data is information we collect. Collecting data means counting or recording how many of something there are.
A tally mark is a way to count. We draw one line for each item. After every 4 lines, the 5th line crosses them.
| Count | Tally Marks |
|---|---|
| 1 | | |
| 2 | || |
| 3 | ||| |
| 4 | |||| |
| 5 |
Solved Examples
Example 1: Example 1: Count Favourite Fruits
Question: Ria asks 10 friends their favourite fruit: Mango-3, Apple-4, Banana-3. Show this in a table.
Answer:
| Fruit | Count |
|---|---|
| Mango | 3 |
| Apple | 4 |
| Banana | 3 |
Example 2: Example 2: Use Tally Marks
Question: Aman counts 7 birds. Show using tally marks.
Answer: |||| || (5 + 2 = 7)
Example 3: Example 3: Most Popular
Question: Priya collected data: Red-6, Blue-3, Green-4. Which colour is most popular?
Answer: Red is most popular (6 is the highest count).
Example 4: Example 4: Least Popular
Question: From the data above, which colour is least popular?
Answer: Blue is least popular (3 is the lowest count).
Example 5: Example 5: Total Count
Question: Dev counts vehicles: Cars-5, Buses-2, Auto-rickshaws-4. How many vehicles in total?
Think:
- 5 + 2 + 4 = 11
Answer: There are 11 vehicles in total.
Example 6: Example 6: Collecting at School
Question: Meera asks her classmates about their pet: Dog-8, Cat-5, Fish-2. How many more children have dogs than cats?
Think:
- 8 − 5 = 3
Answer: 3 more children have dogs than cats.
Example 7: Example 7: Tally to Number
Question: Arjun shows tally marks: |||| ||| . What number is this?
Think:
||||= 5- ||| = 3
- 5 + 3 = 8
Answer: The tally marks show 8.
Key Points to Remember
- Data is information collected by counting or asking questions.
- Tally marks help us count easily — every 5th mark crosses the first 4.
- Collected data can be shown in a table.
- The item with the highest count is the most popular.
- The item with the lowest count is the least popular.
Practice Problems
- Ask 5 friends their favourite colour. Write the data in a table.
- Show the number 9 using tally marks.
- Ria counts flowers: Red-4, Yellow-6, White-3. Which flower has the most count?
- Dev sees tally marks: |||| . What number is this?
- Aditi collects data: Cricket-7, Football-5, Badminton-3. How many children in total?
- From the data above, how many more children like cricket than badminton?
Frequently Asked Questions
Q1. What does collecting data mean?
Collecting data means gathering information by counting things, asking questions, or watching what happens. The information is called data.
Q2. What are tally marks?
Tally marks are lines drawn to keep count. One line = 1. Four lines in a row, then the 5th line crosses them diagonally. This makes it easy to count by 5s.
Q3. How do I show collected data?
You can show data in a table with columns for the item name and its count. You can also use tally marks or picture graphs.
Q4. What can I learn from collected data?
You can find out which item is most popular, which is least popular, and how many of each thing there are. You can also compare groups.
Q5. What is the easiest thing to collect data about?
Start with something simple like favourite fruits, favourite colours, or types of vehicles you see on the road. Ask your friends or count objects around you.
Q6. Why do we use tally marks instead of just writing numbers?
Tally marks help you count as you go. You do not need to remember the total — just add one mark each time you see or count something.
