Measuring and Comparing Lengths
📏 Part 1: Understanding Measurement
1. Why is it important to use the same unit when measuring? Circle the best answer:
So we can compare measurements fairly
Because rulers are expensive
To make measuring harder
2. Which unit would be best for measuring a pencil?
Centimetres
Kilometres
Metres
3. Check all the things you could use to measure length:
Ruler
Paperclips
Your hand
Blocks
A cup
📐 Part 2: Reading Measurements
4. Look at the ruler below. What measurement does the arrow point to?
The arrow points to _______ centimetres.
5. Draw a line that is exactly 8 centimetres long:
6. Estimate first, then measure these objects at home:
Pencil: Estimate _____ cm, Actual _____ cm
Book: Estimate _____ cm, Actual _____ cm
Spoon: Estimate _____ cm, Actual _____ cm
Your shoe: Estimate _____ cm, Actual _____ cm
⚖️ Part 3: Comparing Lengths
7. Fill in the blanks with "longer", "shorter", or "the same length":
A pencil is _____________ than a paperclip.
A book is _____________ than a ruler.
Two identical crayons are _____________ as each other.
8. Put these objects in order from shortest to longest:
paperclip (3 cm), pencil (15 cm), eraser (4 cm), ruler (30 cm)
1. Shortest: _________________
2. _________________
3. _________________
4. Longest: _________________
9. Match the objects with their likely measurements:
1. Paperclip
2. Pencil
3. Classroom door
4. Your thumb
A. About 200 cm
B. About 3 cm
C. About 5 cm
D. About 18 cm
🏠 Part 4: Measuring at Home
10. Find 3 objects at home and measure them. Draw each object and write its length:
Object 1: _________________ Length: _____ cm
Object 2: _________________ Length: _____ cm
Object 3: _________________ Length: _____ cm
11. Use paperclips to measure the length of your hand. How many paperclips long is it?
12. Now measure your hand with a ruler in centimetres. Which measurement is more accurate and why?
My hand is _____ cm long.
The more accurate measurement is: ________________
Because: _________________________________
🤔 Part 5: Thinking About Measurement
13. Aboriginal and Torres Strait Islander peoples traditionally used body parts to measure. Why do you think using a ruler might be better than using your hand to measure?
_________________________________________________
_________________________________________________
_________________________________________________
14. What was the most challenging thing about measuring today?
15. What did you discover about comparing lengths?
