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Catalyst

Catalyst. 1 . How do I feel about my benchmark scores? 2 . What could I have done to improve them? 3 . Is there anything Mr. Astor can do to help me ? 4. Complete the survey on Mr. Astor’s page. End. Lecture 3.3 – Dimensional analysis through Mr. Astor’s Travels. World Traveler.

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Catalyst

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  1. Catalyst 1. How do I feel about my benchmark scores? 2. What could I have done to improve them? 3. Is there anything Mr. Astor can do to help me? 4. Complete the survey on Mr. Astor’s page End

  2. Lecture 3.3 – Dimensional analysis through Mr. Astor’s Travels

  3. World Traveler

  4. Mr. Astor: World Traveler

  5. Dollars to Rand 1$= 7.05 RAND

  6. Today’s Learning Targets • LT 3.3 – I can discuss how to convert between two related units and explain how to complete a multi – step conversion problem involving unrelated units.

  7. How do we convert between units?

  8. I. Conversion Factors • To convert between two different units we use a conversion factor. • A conversion factor allows you to convert between units.

  9. I. Conversion Factors Units You Want Number with New Units Number that you have Units You Have If it helps, set up train tracks before you start!

  10. Conversion Factors Example – Convert $15 to cents 100Cents 1500¢ 15 Dollars 1 Dollars

  11. Table Talk • Convert 250 cm to inches (Note – 1 in = 2.54 cm)

  12. II. Multi-Step Conversions • Often times, we need to take multiple steps to convert between units. • We must set up a series of conversion factors so that all unnecessary units cancel one

  13. Convert 3 hours to seconds 60 min 60 sec 3 hours 10,800 sec 1 hour 1 min

  14. Table Talk • How many days are there in 525,000 seconds? (Note – 1 day = 24 h, 1 h = 60 min, and 1 min = 60 s)

  15. White Board Races

  16. Question 1 • Convert 500 minutes into seconds

  17. Question 2 • You have 5 dozen doughnuts, how many doughnuts do you have (12 doughnuts = 1 dozen)

  18. Question 3 • You have 14 cups of water, how many gallons of water do you have (1 gallon = 4 quarts; 1 quart = 4 cups)

  19. Question 4 • You have 32 cups of solution. How many gallons do you have? (1 gallon = 4 quarts; 1 quart = 4 cups)

  20. Question 5 • How many minutes are there in 1 year?

  21. Balancing Equations Quiz • When you are finished with dimensional analysis, spend about 20 minutes to complete the quiz. • We will grade it as a class next week.

  22. Mr. Astor World Traveler Stations • Please follow the instructions on the handout and travel to each station accordingly.

  23. USA  South Africa  Zambia • Finish the Journey to at least Zambia before the end of the period.

  24. Want to Travel the World? • If the whole class finishes the required stations, Mr. Astor will show you the rest of the pictures.

  25. a

  26. MY STUDY ABROAD SCHOOL: UCT (University of Cape Town)

  27. Animals are everywhere!

  28. Animals are everywhere!

  29. Animals are everywhere!

  30. Safety First!

  31. Traveling the World is Beautiful!

  32. Exit Slip • You have 42 dollars. You know the following conversions: £ 1 pound = $1.62 £ 1 pound = € 1.25 Euro How many Euros do you have?

  33. Closing Time • Homework 3.3 Conversion Factors

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