SFE METRIC MEASURES INTRO

• Mathematics
• Upper Secondary (Key Stage 4)
• GCSE

METRIC MEASURES

ROUGHLY WHAT HEIGHT IS THE DOOR IN THIS ROOM?

CAN YOU NAME AS MANY METRIC UNITS AS POSSIBLE?

WHAT ABOUT IMPERIAL UNITS? CAN YOU NAME ANY OF THESE?

Kilometre (km)​

Metre (m)​

Centimetre (cm)​

Millimetre (mm)​

Tonne (t)​

Kilogram (kg)​

Gram (g)​

Litre (L)​

Centilitre (cl)​

Millilitre (ml)​

Here is a list of the most common metric units we use:

Inch (in)​

Foot (ft)​

Yard (yd)​

Mile (m)​

Ounce (oz)​

Pound (lb)​

Stone (st)​

Fluid ounce (fl. Oz)​

Pint (pt)​

Gallon (gal)​

Acre ​

Here is a list of imperial units that are sometimes used alongside metric units

What units do we use in the metric system for…

Capacity

Weight

Length

cm

mm

m

km

g

kg

L

ml

Which metric unit would you use to measure the weight of a sandwich?

Which metric unit would you use to measure water in a kettle?

Which metric unit would you use the measure the fence around a garden?

Which metric unit would you use to measure the volume of a can of Coke?

Which metric unit would you use to measure the distance between London and Cardiff?

10

100

1000

mm in a cm

cm in a m

m in a km

g in a kg

ml in a L

KEY FACTS TO REMEMBER!

LENGTH

1km = 1000m

1m = 100cm

1cm = 10mm

CAPACITY

1L = 1000ml

WEIGHT

1T = 1000kg

1kg = 1000g

HOW DO I CONVERT BETWEEN UNITS??

KEY QUESTIONS:

Do I use 10, 100 or 1000?

Do I multiply or divide?

Smaller unit to a larger unit = division

Larger unit to a smaller unit = multiplication

Convert 350cm into m

1. 35m
2. 3500m
3. 3.5m
4. 0.35m

Convert 2350ml into litres

1. 235l
2. 2.35l
3. 23500l
4. 23.5l

Convert 3.3km into m

1. 33m
2. 330m
3. 33000m
4. 3300m

Convert 5.5kg into g

1. 5500g
2. 55g
3. 550g
4. 55000g

Convert 44mm into cm

1. 4400cm
2. 440cm
3. 4.4cm
4. 0.44cm

Conversion Task