📏 Part 1: Types of Measurement

1. Match each type of measurement with its correct definition:

1. Length

2. Area

3. Volume

4. Mass

A. Amount of matter in an object

B. Distance along a line

C. Space occupied inside an object

D. Surface covered by a shape

2. Circle the type of measurement needed for each real-world example:

Measuring the height of your desk:

Length

Area

Volume

Mass

Finding how much water fits in a bottle:

Length

Area

Volume

Mass

Calculating the floor space of your bedroom:

Length

Area

Volume

Mass

📐 Part 2: Choosing Appropriate Units

3. For each scenario, circle the most appropriate unit of measurement:

The length of a rugby field:

centimetres

metres

kilometres

The mass of a bag of flour:

grams

kilograms

tonnes

The volume of a swimming pool:

millilitres

litres

cubic metres

The area of a postage stamp:

square centimetres

square metres

square kilometres

4. Fill in the blanks with the most appropriate units:

a) The distance from Auckland to Wellington is approximately 650 ______________.

b) A can of soft drink contains 330 ______________.

c) The mass of a paperclip is about 1 ______________.

d) A football field has an area of approximately 7000 ______________.

🔄 Part 3: Metric System Conversions

5. Complete these simple conversions:

a) 2.5 metres = __________ centimetres

b) 3000 grams = __________ kilograms

c) 1.5 litres = __________ millilitres

d) 450 centimetres = __________ metres

6. Solve these measurement problems:

Problem A: Sarah needs 2.5 kg of flour for baking. She has a 750g bag and a 1200g bag. Does she have enough flour? Show your working.

Problem B: A rectangular garden bed is 3.5m long and 2m wide. What is its area in square metres?

🤔 Part 4: Reflection and Real-World Applications

7. Why is it important to use the correct units when measuring? Give two reasons:

8. Think of three situations in your daily life where accurate measurement is important. Explain what type of measurement is needed and why:

9. Check all the jobs/careers that require good measurement skills:

Builder

Chef

Scientist

Fashion designer

Pharmacist

Engineer

🌟 Part 5: Extension Challenge (Advanced Learners)

10. Irregular Shape Challenge: You need to find the volume of an irregularly shaped rock. You have a measuring cylinder with water. Describe the method you would use:

11. Unit Conversion Challenge: A recipe calls for 2 cups of milk. If 1 cup = 250mL, and you only have a 1.5L carton of milk, how much milk will you have left after making the recipe? Show all working:

12. Critical Thinking: Explain why using non-standard units (like measuring length in "hand spans") might cause problems in real-world situations: