Unit 1

LENGHTby Maria Adrover

CEIP CALONGE

Geometry 4th_Unit 1_Lenght

Definition of lenght

Distance. How far from end to end. Or from one point to another.

The length of this guitar is about 1 meter

Geometry 4th_Unit 1_Lenght

Smaller units than the metre

Decimetre (dm)

Centimetre (cm)

Millimetre (mm)

Geometry 4th_Unit 1_Lenght

Unit equivalences

REMEMBER:1m = 10dm

1m = 100cm

1m = 1.000mm

Geometry 4th_Unit 1_Lenght

Bigger units than the metre

Kilometre (km)

Hectometre (hm)

Decametre (dam)

Unit equivalences

REMEMBER:1dam = 10m

1hm = 100m

1km = 1.000m

Metric System

Simple and complex expressions

* We also use the decimal numbers:Mary is 1,28m tall (1.28m = 1028cm = 1m 28cm)