Pirate maths quest: area

Quick answer

Area is the amount of space inside a shape, measured by counting how many squares fit inside it. You can find the area of a shape by using square tiles or by multiplying length times width.

Learning outcome

By the end of this page, you will be able to find the area of rectangles and squares by counting squares or multiplying length by width.

• You can count squares to find the area of a shape
• You can multiply length and width to find the area of rectangles
• You can solve real-life problems involving area
• You can use your knowledge of area to help Captain Kelp find treasure

Why this matters

Knowing how to find the area helps you solve puzzles, plan gardens, and find treasure! When you're a pirate, you need to know how big your treasure chests are or how much space your ship's supplies take up. Area helps you measure how much space something covers, which is useful for everything from building a ship to sharing snacks with your crew.

How it works

Area is how much space a shape takes up. You can find area in two ways:

1. Count how many square tiles fit inside the shape
2. Multiply the length by the width

When you count squares, you're counting how many 1cm by 1cm squares fit inside a shape. When you multiply length by width, you're using a faster way to get the same answer.

Examples you can see

Imagine you're Captain Kelp and you've found a treasure map. The map shows a treasure chest that's 4 squares wide and 3 squares tall. Let's see how to find the area:

So the treasure chest takes up 12 square spaces on the map!

Here's another example with a garden:

Your pirate ship has a garden that is 5 metres long and 2 metres wide. To find how much space the garden takes up:

• Length = 5 metres
• Width = 2 metres
• Area = 5 × 2 = 10 square metres

Try it as a mini adventure

Join Captain Kelp on a treasure hunt! Your mission is to find the biggest treasure chest on the island.

Step 1: Find the treasure chest that is 6 squares long and 4 squares wide.

Step 2: Count how many squares fit inside it.

Step 3: Draw a grid to show how many squares fit inside the chest.

Step 4: Calculate the area using multiplication.

Step 5: Compare your chest with other chests to see which one is the biggest!

Common mistakes

• Mistake: Forgetting to include the units when measuring area.
• Why it happens: Kids might count the squares but forget to say "square centimetres" or "square metres".
• Fix: Always say how many squares fit in the shape and add the unit of measurement.

• Mistake: Confusing area with perimeter.
• Why it happens: Area measures inside space, while perimeter measures around the outside.
• Fix: Remember: area = inside space, perimeter = outside edge.

• Mistake: Counting the edges of the shape instead of the inside squares.
• Why it happens: It's easy to get confused when counting.
• Fix: Count only the squares inside the shape, not the edges.

Parent and carer guide

Help your child by:

1. Using everyday objects to show area: a book cover, a table top, a floor tile
2. Playing a counting game with grid paper: draw shapes and count squares
3. Practising multiplication: "If a garden is 5 metres long and 3 metres wide, how many square metres does it cover?"
4. Encouraging your child to explain their thinking: "How did you find the area?"
5. Using real-world examples like measuring a room or a garden

Remember: It's okay if your child makes mistakes. They're learning!

Practice questions

1. What is the area of a rectangle that is 5 squares long and 3 squares wide?
2. Find the area of a garden that is 8 metres long and 4 metres wide.
3. How many square tiles are needed to cover a floor that is 6 squares long and 2 squares wide?
4. What is the area of a square that is 4 squares on each side?
5. Calculate the area of a rectangle that is 7 squares long and 2 squares wide.

Answers:

1. 5 × 3 = 15 square squares
2. 8 × 4 = 32 square metres
3. 6 × 2 = 12 square tiles
4. 4 × 4 = 16 square squares
5. 7 × 2 = 14 square squares

FAQ

What is area?

Area is how much space a shape takes up. It's measured in square units like square centimetres or square metres.

How do I find the area of a rectangle?

You multiply the length by the width. For example, if a rectangle is 5 squares long and 3 squares wide, the area is 5 × 3 = 15 square squares.

Can I use any shape to find area?

Yes! You can find the area of any shape, but rectangles and squares are the easiest to measure using multiplication.

Why do we need to know about area?

Knowing area helps you solve real-life problems like planning a garden, covering a floor, or sharing space with your crew. It's useful for everything from cooking to building!

What if I don't have square tiles?

You can still find area by counting squares on paper or by using multiplication. The more you practice, the easier it gets!