Post on 02-Apr-2015
HOW TO SAVE WATER: What happens if we do not turn off the tap on time?
Noèlia Callau Codorniu March 2008
LESSON 4
We are16 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 on time?
Noèlia Callau Codorniu March 2008
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 1 minute is 16 minutes)
In 1 minute, 3.450 L come out of the tap.
1 L= 1000 mL. 3 L= 3 X 1000 = 3000 mL.
3.450 L = 3 L and 450 mL.
3000 mL + 450 mL = 3,450 mL.
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 mL come out of the tap,
in 16 minutes …
3,450 X 16 = … mL
3, 4 5 0
X 1 6
2 0 7 0
3 4 5
5 5, 2 0 0
3,000 400 50
10 30,000 4,000 500 34,500
6 18,000 2,400 300 20,700
55,200mL = 55 L and 200 mL
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 = … mL
3, 4 5 0
X 1 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 = … mL
3, 4 5 0
X 1 6
0
3
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 = … mL
3, 4 5 0
X 1 6
7 0
2
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 = … mL
3, 4 5 0
X 1 6
2 0 7 0
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 = … mL
3, 4 5 0
X 1 6
2 0 7 0
5
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 = … mL
3, 4 5 0
X 1 6
2 0 7 0
4 5
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 = … mL
3, 4 5 0
X 1 6
2 0 7 0
3 4 5
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 = … mL
3, 4 5 0
X 1 6
2 0 7 0
3 4 5
0
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 = … mL
3, 4 5 0
X 1 6
2 0 7 0
3 4 5
0 0
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 = … mL
3, 4 5 0
X 1 6
2 0 7 0
3 4 5
2 0 0
1
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 = … mL
3, 4 5 0
X 1 6
2 0 7 0
3 4 5
5 2 0 0
1
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 = … mL
3, 4 5 0
X 1 6
2 0 7 0
3 4 5
5 5 2 0 0
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 = … mL
3, 4 5 0
X 1 6
2 0 7 0
3 4 5
5 5, 2 0 0 mL = 55 L and 200 mL
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 = … mL
First, we split 3,450 into
thousands, hundreds, tens and units:
3,000 400 50 0 + + +
Secondly, we split 16 into
tens and units:
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 = … mL
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 = … mL
3,000 400 50
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 = … mL
3,000 400 50
10
6
Now, we locate each number in a cell:
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 = … mL
3,000 400 50
10 3,000 X 10
6
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000
6
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 400 X 10
6
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 4,000
6
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 4,000 50 X10
6
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 4,000 500
6
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 4,000 500
6 3,000 X 6
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 4,000 500
6 18,000
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 4,000 500
6 18,000 400 X 6
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 4,000 500
6 18,000 2,400
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 4,000 500
6 18,000 2,400 50 X 6
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 4,000 500
6 18,000 2,400 300
Afterwards, we multiply each column by each file:
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 = … mL
3,000 400 50
10 30,000 4,000 500
6 18,000 2,400 300
Now, we sum each file:
+ + = 34,500
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 = … mL
3,000 400 50
10 30,000 4,000 500
6 18,000 2,400 300
Now, we sum each file:
+ + = 34,500
+ + = 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 = … mL
3,000 400 50
10 30,000 4,000 500
6 18,000 2,400 300
Finally, we sum the last column:
+ + = 34,500
+ + = 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 = … mL
3,000 400 50
10 30,000 4,000 500
6 18,000 2,400 300
Finally, we sum the last column:
+ + = 34,500
+ + = 20,700
55,200 mL 55 L and 200 mL
+
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 on time?
Noèlia Callau Codorniu March 2008
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 on time?
Noèlia Callau Codorniu March 2008