Data investigations

Quick answer

Data investigations help you find answers to questions by collecting, sorting, and looking at information. You can use this to discover interesting things about yourself, your friends, or your world!

Learning outcome

By the end of this page, you will be able to ask a question, collect information, show it in a simple way, and explain what it tells you.

• You can think of a question you want to find out about.
• You can gather information from people or things around you.
• You can show your data using pictures, charts, or simple graphs.
• You can explain what your data shows you.

Why this matters

Data investigations are useful in school, at home, and in real life. When you collect information, you learn how to ask good questions, spot patterns, and make sense of what you find. This helps you become a better thinker and problem solver. Whether you're checking if your friends like pizza or discovering how many books you've read this year, data investigations help you understand the world better.

How it works

Here are the simple steps for doing a data investigation:

1. Ask a question – What do you want to find out?
2. Collect data – Gather information from people or things.
3. Organise data – Put it in a way that makes sense.
4. Represent data – Show it with pictures, charts, or graphs.
5. Explain findings – Tell what your data shows you.

Examples you can see

Let's imagine you want to find out what your classmates like to eat for lunch.

Step 1: Ask a question

You might ask, "What is the most popular lunch food among my class?"

Step 2: Collect data

You ask each of your 15 classmates what they usually eat for lunch. You write down their answers:

• Sandwich
• Pizza
• Sandwich
• Salad
• Pizza
• Sandwich
• Salad
• Pizza
• Sandwich
• Salad
• Pizza
• Sandwich
• Salad
• Pizza
• Sandwich

Step 3: Organise data

You can put the answers in a table:

Step 4: Represent data

You can make a simple bar chart or picture graph to show your results. For example, you might draw 6 squares for sandwiches, 5 for pizza, and 4 for salad.

Step 5: Explain findings

You can say, "Most of my classmates like sandwiches for lunch. Pizza is the second most popular choice."

Try it as a mini adventure

Adventure: The Great Lunch Survey

You are a detective on a mission to discover what food your whole class likes best for lunch. Here's how to solve the mystery:

1. Question time – What do you want to find out? (Example: "What is the most popular lunch food?")
2. Survey your friends – Ask 10 classmates what they eat for lunch and write it down.
3. Organise your findings – Make a table like the one above.
4. Draw your chart – Use drawings or stickers to show your data.
5. Share your discovery – Tell your teacher or parents what your data shows.

Try this with different questions, like: "What is the most popular sport in our class?" or "What is the most common pet in our school?"

Common mistakes

• Mistake: Not asking a clear question
• Why it happens: You might pick a question that is too big or not specific enough.
• Fix: Try to make your question simple and clear, like "What is the most popular lunch food?" not "What do people like?"
• Mistake: Not collecting enough data
• Why it happens: You might only ask one or two people.
• Fix: Ask at least 5-10 people or look at more examples to get a better idea.
• Mistake: Mixing up what the data shows
• Why it happens: You might say "Pizza is the most popular" when it's actually "Sandwiches are the most popular".
• Fix: Double-check your table or chart before explaining your findings.

Parent and carer guide

Helping your child with data investigations is a fun way to practice maths at home. Here's how:

• Ask good questions – Encourage your child to ask interesting questions they want to explore.
• Collect together – You can help them gather data by asking family members or friends.
• Make it visual – Use drawings, stickers, or blocks to represent data.
• Check together – Look at the data and charts together to make sure they understand what they found.
• Be curious – Ask your child what their data shows them and what they might want to find out next.

Don't worry if your child makes mistakes – it's part of learning. The most important thing is that they are thinking about data and asking questions!

Practice questions

1. Question: You want to find out what your friends like to drink at school. What is a good question to start with?
2. Answer: "What is the most popular drink among my friends?"
3. Question: You collect data from 8 friends and find they like: juice, water, juice, soda, water, juice, water, soda. How many like juice?
4. Answer: 3 friends
5. Question: You make a chart and see that 5 people like apples, 3 like bananas, and 2 like oranges. What fruit is the most popular?
6. Answer: Apples
7. Question: If you ask 12 people what their favourite sport is, and 4 say football, 5 say tennis, and 3 say swimming, how many people like football?
8. Answer: 4 people
9. Question: You ask 10 people what they had for breakfast. 6 say cereal, 3 say toast, and 1 says eggs. What is the most popular breakfast?
10. Answer: Cereal

FAQ

What is a data investigation?

A data investigation is when you ask a question, collect information, and then look at it to find answers.

Why do we do data investigations?

We do data investigations to learn more about the world around us, solve problems, and make better decisions.

Can I do a data investigation at home?

Yes! You can ask questions about your family, pets, or your own habits and collect data to find answers.

Do I need to use charts and graphs?

Not always! You can use pictures, drawings, or even a simple list to show your data. Charts are helpful but not needed.

How can I make my data investigation better?

Ask clear questions, collect data from more people or things, and always check your work before explaining your findings.