Metric Units - Measurement

Perimeter and Area

We measure length in meters, centimeters, millimeters and kilometers

1 centimeter = 10 millimeters
1 meter = 100 centimeters
1 meter = 1000 millimeters
1 kilometer = 1000 meters

m = meter
cm = centimeter
mm = millimeter
km = kilometer

Hard at work

The perimeter around the outside is 4m.
P= 1m+1m+1m+1m
P=4m

The area of this shape is 1m (squared)
We know that to work out the area the formula is BASE x HEIGHT.
A= 1m x 1m
A=1 m (squared)

Perimeter and Area of my desktop

I am measuring the perimeter of my desktop. I found out that it was 61cm by 47cm.
P= 61cm+47cm+61cm+47cm
P= 216cm

I also worked out the area of my desktop.
A= 61cm x 47cm
A=2867cm (squared)

By Shealeigh

Measuring the perimeter of the tennis court.

Here we are measuring the perimeter of the tennis court. We found out that it was 12m by 23m (rounded to nearest whole number).
P= 12m + 23m +12m +23m
P= 60m
So we found out that if you run around the perimeter of a tennis court, you run 60m.

Measuring Volume and Mass

We have been learning about Volume and Mass. We now know that Mass = weight. Weight is measured in grams (g) and kilograms (kg) and Volume = how much a container can hold. Volume is measured in liters (L) and Milliliters (mL).

I found out that the volume of two Powerade bottles is the same as one 1.5 L coke bottle. 750 mL + 750 mL = 1.5L
By Charlotte


We are weighing classroom objects. First we estimate the weight and then we check. These scissors weigh 50 grams = 50g
(These are our thinking faces)
By Emma


Our task was to estimate and weigh classroom objects. I am weighing a stopwatch. I think it will weigh 20g... The actual weight was 50g.




We are weighing a felt pen.
We all think it will weigh 20g. But it weighed 10g. We were close.









This is fun and interesting. Here we are weighing a pencil case. It weighs 348g, we also learnt that there are 1000 grams in 1 kilogram.

Time race

Here we are playing a game where Mr Mitchell calls out a time and we have to make that time on our clock face. It is a race so it is important to listen carefully.