Measurements of length
What unit of measurement would you use to measure the length of a dime?
mm, cm, m, km?
millimeters (mm)
What are the 2 units called when we measure mass? (How heavy something is?)
grams (g) and kilograms (kg)
What are the 2 units called when we measure capacity?
millilitres (mL) and liters (L)
200 cm = _____ m
2 m
What is an example of a non standard unit?
A non-standard unit is something you use to measure that is not a standard unit (like cm, m, g, or L), such as hands, pencils, or footsteps.
What unit is best for measuring the height of a student?
mm, cm, m, km
metres (m)
Would you measure the weight of an apple in grams or kilograms?
grams (g)
Would you measure water in a glass using mL or L?
mL
4 km = _______ m
4000 m
Fix the Mistake:
The pencil is 20 km long. → What’s wrong?
The pencil is 20 CM long.
What unit would you use to measure the distance between two cities?
Kilometers (KM)
Which unit would you use to measure a paperclip? Why?
grams because it is so light in weight
Would you use mL or L to measure a swimming pool?
L
1 kg = _______ g
1000 g
If a student and an adult measure the length of a classroom using their footsteps, why might they get 2 different answers?
Because their footsteps are different sizes!
Why wouldn’t you use kilometers to measure a book?
What would you use instead?
Because KM are too big.
cm.
A dog weighs 25 ___. (g or kg?)
kg
A water bottle holds 500 ___. (mL or L?)
mL
8000 mL = _____ L
8
Name a non-standard unit you could use to measure the length of a desk.
Some examples:
- pencils
- hand spans
- paper clips
A soccer field is about 100 units long. Which unit makes the most sense?
Is a backpack measured in mass or capacity?
mass
Is juice measured in mass or capacity?
capacity
Which measurement is bigger?
6500 m or 6.5 km?
They are both the same! :)
When do we measure in non-standard units?