LESSON 4 HOW TO SAVE WATER What happens

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LESSON 4 HOW TO SAVE WATER: What happens if we do not turn off

LESSON 4 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

We are 16 pupils. HOW TO SAVE WATER: What happens if we do not

We are 16 pupils. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

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

HOW TO SAVE WATER: What happens if we do not turn off the tap

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

16 pupils equal 16 minutes. 16 x 1= 16 min. (16 pupils multiplied by

16 pupils equal 16 minutes. 16 x 1= 16 min. (16 pupils multiplied by 1 minute is 16 minutes) In 1 minute, 3. 450 L come out of the tap. 3. 450 L = 3 L and 450 m. L. 1 L= 1000 m. L. 3 L= 3 X 1000 = 3000 m. L + 450 m. L = 3, 450 m. L. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008 If in 1 minute 3, 450 m. L come out of the tap, in 16 minutes … 3, 450 X 16 = … m. L 3, X 2 0 3 4 5 5, 4 1 7 5 2 5 0 6 0 3, 000 400 50 10 30, 000 4, 000 500 34, 500 6 18, 000 2, 400 300 20, 700 55, 200 0 0 m. L = 55 L and 200 m. L

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, 4 5 0 X 1 6 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3 3, 4 5 0 X 1 6 0 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 2 3, 4 5 0 X 1 6 7 0 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, 4 5 0 X 1 6 2 0 7 0 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, 4 5 0 X 1 6 2 0 7 0 5 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, X 2 0 4 4 5 0 1 6 7 0 5 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, X 2 0 3 4 4 5 0 1 6 7 0 5 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, X 2 0 3 4 4 5 0 1 6 7 0 5 0 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, X 2 0 3 4 4 5 0 1 6 7 0 5 0 0 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, X 1 2 0 3 4 4 1 7 5 2 5 0 6 0 0 0 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, X 1 2 0 3 4 5 4 1 7 5 2 5 0 6 0 0 0 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, X 2 0 3 4 5 5 4 1 7 5 2 5 0 6 0 0 0 March 2008

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu 3, 450 X 16 = … m. L 3, X 2 0 3 4 5 5, 4 1 7 5 2 5 0 6 0 0 0 m. L = 55 L and 200 m. L March 2008

3, 450 X 16 = … m. L First, we split 3, 450 into

3, 450 X 16 = … m. L First, we split 3, 450 into thousands, hundreds, tens 3, 000 400 50 + + and units: + Secondly, we split 16 into tens 10 and + units: 6 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008 0

3, 450 X 16 = … m. L Now, we locate each number in

3, 450 X 16 = … m. L Now, we locate each number in a cell: 3, 450 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Now, we locate each number in

3, 450 X 16 = … m. L Now, we locate each number in a cell: 3, 000 400 50 3, 450 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Now, we locate each number in

3, 450 X 16 = … m. L Now, we locate each number in a cell: 3, 000 400 50 10 6 16 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 3, 000 10 400 50 3, 000 X 10 6 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 3, 000 10 400 50 30, 000 6 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 10 3, 000 400 30, 000 400 X 10 50 6 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 10 3, 000 400 30, 000 4, 000 50 6 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 10 3, 000 400 50 30, 000 4, 000 50 X 10 6 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 10 3, 000 400 50 30, 000 4, 000 500 6 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 3, 000 400 50 10 30, 000 4, 000 500 6 3, 000 X 6 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 3, 000 400 50 10 30, 000 4, 000 500 6 18, 000 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 3, 000 400 50 10 30, 000 4, 000 500 6 18, 000 400 X 6 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 3, 000 400 50 10 30, 000 4, 000 500 6 18, 000 2, 400 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 3, 000 400 50 10 30, 000 4, 000 500 6 18, 000 2, 400 50 X 6 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Afterwards, we multiply each column by

3, 450 X 16 = … m. L Afterwards, we multiply each column by each file: 3, 000 400 50 10 30, 000 4, 000 500 6 18, 000 2, 400 300 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Now, we sum each file: 3,

3, 450 X 16 = … m. L Now, we sum each file: 3, 000 400 50 10 30, 000 + 4, 000 + 500 = 6 18, 000 2, 400 300 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008 34, 500

3, 450 X 16 = … m. L Now, we sum each file: 3,

3, 450 X 16 = … m. L Now, we sum each file: 3, 000 400 50 10 30, 000 + 4, 000 + 500 = 34, 500 6 18, 000 + 2, 400 + 300 = 20, 700 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008

3, 450 X 16 = … m. L Finally, we sum the last column:

3, 450 X 16 = … m. L Finally, we sum the last column: 3, 000 400 50 10 30, 000 + 4, 000 + 500 = 6 18, 000 + 2, 400 + 300 = + HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008 34, 500 20, 700

HOW TO SAVE WATER: What happens if we do not turn off the tap

HOW TO SAVE WATER: What happens if we do not turn off the tap on time? © Noèlia Callau Codorniu March 2008 3, 450 X 16 = … m. L Finally, we sum the last column: 3, 000 400 50 10 30, 000 + 4, 000 + 500 = 6 18, 000 + 2, 400 + 300 = 55 L and 200 m. L + 34, 500 20, 700 55, 200 m. L

HOW TO SAVE WATER: What happens if we do not turn off the tap

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

HOW TO SAVE WATER: What happens if we do not turn off the tap

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

HOW TO SAVE WATER: What happens if we do not turn off the tap

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