📏 Part 1: Choosing the Right Units and Tools

1. Circle the most appropriate unit for measuring each item:

a) The length of your classroom

millimetres

centimetres

metres

kilometres

b) The amount of water in a school drink bottle

millilitres

litres

kilolitres

c) The area of your desk

square millimetres

square centimetres

square metres

square kilometres

2. Match the measuring tool with the most suitable task:

1. Ruler (30cm)

2. Tape measure

3. Measuring jug

4. Trundle wheel

A. Measuring playground length

B. Measuring textbook width

C. Measuring water for experiment

D. Measuring around a tree trunk

🏠 Part 2: Real-Life Measurement Problems

3. Garden Fence Problem: Mrs. Patel wants to put a fence around her rectangular vegetable garden. The garden measures 8 metres long and 5 metres wide. How much fencing does she need?

Step 1: Draw a diagram of the garden below:

Step 2: Show your calculations:

Answer: Mrs. Patel needs _________ metres of fencing.

4. Water Container Problem: A rectangular fish tank is 60cm long, 30cm wide, and 40cm high. If it's filled to 5cm from the top, how many litres of water does it contain? (Remember: 1000cm³ = 1 litre)

Step 1: What is the height of water in the tank? _________ cm

Step 2: Calculate the volume of water:

Answer: The tank contains _________ litres of water.

📐 Part 3: Estimation and Problem Solving

5. Classroom Floor Area: Work with your partner to solve this problem about your classroom.

a) First, estimate the length and width of your classroom:

Estimated length: _________ metres

Estimated width: _________ metres

Estimated area: _________ square metres

b) Now measure the actual dimensions:

Actual length: _________ metres

Actual width: _________ metres

Actual area: _________ square metres

c) How close was your estimate?

6. Sports Field Problem: The school rugby field is 100 metres long and 70 metres wide. Calculate:

a) The perimeter of the field:

Perimeter = _________ metres

b) The area of the field:

Area = _________ square metres

🧮 Part 4: Unit Conversions and Complex Problems

7. Convert these measurements:

a) 2.5 metres = _________ centimetres

b) 1500 millilitres = _________ litres

c) 0.75 kilometres = _________ metres

d) 250 square centimetres = _________ square metres

8. Swimming Pool Problem: A rectangular swimming pool is 25 metres long, 10 metres wide, and 2 metres deep. The pool needs to be filled to 20cm from the top for safety.

a) What is the depth of water needed? _________ metres

b) Calculate the volume of water needed:

c) How many kilolitres is this? _________ kilolitres

d) If water costs $2.50 per kilolitre, how much will it cost to fill the pool?

Cost = $_________