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Remember and think !

Remember and think !. LESSON 7. Some children wasted 1,350 mL brushing their teeth; i.e 1L 350 mL. It took 30 seconds wasting those millilitres. HOW TO SAVE WATER: What happens if we do not turn off the tap on time?

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Remember and think !

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  1. Remember and think ! LESSON 7 • Some children wasted 1,350 mL brushing their teeth; i.e 1L 350 mL. • It took 30 seconds wasting those millilitres. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  2. Remember and think ! How much water would we save in 1 minute? HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  3. Remember and think ! HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  4. What do I have to take into account? Water wasted in 30 sec.= 1,350 mL = 1L 350 mL. 60 = 30 x 2 1 min. = sec. 60 60:30 = 2 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  5. What can I do to find it out? If in 30 seconds we wasted 1,350 mL, in 1 minute we would waste… 1 min. = 60 sec. = 30 x 2 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  6. What can I do to find it out? 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  7. What can I do to find it out? 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  8. What can I do to find it out? 1,350 mL x 2 = 1 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  9. What can I do to find it out? 1,350 mL x 2 = 1 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  10. What can I do to find it out? 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  11. What can I do to find it out? 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  12. What can I do to find it out? 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  13. What can I do to find it out? 1,350 mL x 2 = We locate each number in a cell: 1,350 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  14. What can I do to find it out? 1,350 mL x 2 = 1,350 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  15. What can I do to find it out? 1,350 mL x 2 = 16 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  16. What can I do to find it out? 1,350 mL x 2 = We multiply each column by each row: HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  17. What can I do to find it out? 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  18. What can I do to find it out? 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  19. What can I do to find it out? 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  20. What can I do to find it out? 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  21. What can I do to find it out? 1,350 mL x 2 = HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  22. What can I do to find it out? 1,350 mL x 2 = + + = 2,700 HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  23. How do I know? Multiplying 1,350 mL by 2 is 2,700 mL That is 2L and 700 mL of wasted water If we turned off the tap on time, we would save 2L and 700mL of water. HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  24. Where could we put all this water? 2L and 700 mL HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  25. Where could we put all this water? Click on the image to check. … in a swimming pool ? … in a trailer ? … in a tanker ? HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  26. Where could we put all this water? Click on the image to check. … in a big tank ? … in huge tanks ? HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  27. Where could we put all this water? Click on the image to check. … in a tiny tank ? … in a small tank ? … in a medium tank ? HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  28. Where could we put all this water? Click on the image to check. … in a bottle ? … in a bowl ? … in a bucket ? HOW TO SAVE WATER: What happens if we do not turn off the tap on time? Noèlia Callau Codorniu March 2008

  29. Oh no!!!

  30. Oh no!!!

  31. Oh no!!!

  32. Oh no!!!

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

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

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