1. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008 L.1 PRESENTATION

2. MEASUREMENT LENGTH km =Kilometre m = Metre cm =Centimetre mm = Millimetre AREA Km 2 = Square Kilometre m 2 = Square Metre cm 2 = Square Centimeter WEIGHT g =Grams Kg = Kilograms VOLUME m 3 = cubic metre cm 3 = cubic centimetre TIME Year Month Week Day h = Hour m = Minute s = Second CAPACITY L = Litre ml = millilitre HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

3. We measure LENGTH to know… how long things are. how tall they are. how far apart they are. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

4. We measure LENGTH with… a tape measure. a ruler. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

5. We measure LENGTH in… - KILOMETRES (km) to measure BIG/LONG DISTANCES. - METRES (m) to measure MEDIUM length. - CENTIMETRES (cm) to measure SMALL objects. - MILLIMETRES (mm) to measure TINY/THIN objects. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

6. AREA We measure an area to know the occupied SURFACE. We measure a BIG area in square kilometres (km 2 ). We measure a MEDIUM area in square metres (m 2 ). We measure a SMALL area in square centimetres (cm 2 ). HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

7. We measure WEIGHT to know… how much an object or a person weighs. a scale. We measure WEIGHT with… HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

8. We measure WEIGHT in… - KILOGRAMS (kg) to weigh HUGE/BIG objects or people. - GRAMS (g) to weigh SMALL/TINY objects. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

9. We measure VOLUME to know… how much SPACE an object occupies. We measure VOLUME in… - CUBIC METRES (m 3 ) to measure BIG occupied spaces. - CUBIC CENTIMETRES (cm 3 ) to measure SMALL occupied spaces. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

10. We tell the TIME to know… what the time is. how much time goes by. how long an activity lasts. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

11. We measure TIME in… Years Months Weeks Days HoursMinutesSeconds HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

12. We measure CAPACITY to know… The amount/liquid a container can hold. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

13. We measure CAPACITY with… a measuring jug. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

14. We measure CAPACITY in… - LITRES (L) to measure BIG amounts of liquids. - MILLILITRES (ml) to measure SMALL amounts. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

15. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008 L.1 PRESENTATION