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Measuring Time!

Measuring Time!. Solve problems i nvolving Elapsed Time 5.11B. Reasoning Mind Academy: Measuring Time. Key Words: Time Elapsed T ime Units Hours Minutes Seconds Days Months Weeks Years. Reasoning Mind Academy: Measuring Time.

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Measuring Time!

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  1. Measuring Time! Solve problems involving Elapsed Time 5.11B

  2. Reasoning Mind Academy: Measuring Time Key Words: Time Elapsed TimeUnits HoursMinutes Seconds Days Months Weeks Years

  3. Reasoning Mind Academy: Measuring Time REMEMBER: Shorter periods of time can be measured in , , and . *Hint: Use STAAR Math Chart.

  4. Reasoning Mind Academy: Measuring Time REMEMBER: Longer periods of time can be measured in , , and . *Hint: Use STAAR Math Chart.

  5. Reasoning Mind Academy: Measuring Time Definition: time is the difference between two times. How much time has passed?!  Word Bank: Time Elapsed Units Hours Minutes

  6. Reasoning Mind Academy: Measuring Time REMEMBER: hour (hr.) = minutes (min.) *Hint: Use STAAR Math Chart.

  7. Reasoning Mind Academy: Measuring Time Example 1) A plane flies from Seattle to San Francisco. The plane departs from Seattle at 8:55 a.m. and lands in San Francisco at 11:05 a.m. How long is the flight?

  8. Reasoning Mind Academy: Measuring Time Step 1: Identify your time and start time to calculate the time. End Time (11:05) – Start Time (8:55) = ?

  9. Reasoning Mind Academy: Measuring Time Step 2: or change all of the hours into (1 hr. = 60 min) 11 hours 5 minutes → 11 hours + 5 minutes → 660 minutes + 5 minutes = ? 8 hours 55 minutes → 8 hours + 55 minutes → minutes + 55 minutes = ?

  10. Reasoning Mind Academy: Measuring Time Step 2 (cont’d): A BIGGER unit (like hours) converted to a smaller unit (like minutes) means we will have to . (Hint: What operation would we need to use?)

  11. Reasoning Mind Academy: Measuring Time Step 2 (cont’d): 11 hours = ____minutes 8 hours = minutes 11 hrs. x 60 min = 11 x 60 = 8 hrs. x 60 min = 8 x 60 = 1 hr. 1 hr.

  12. Reasoning Mind Academy: Measuring Time Step 3: of the minutes. (**Note: Other problems may require you to add.)** 11 hours 5 minutes → 11 hours + 5 minutes → 660 minutes + 5 minutes = 665 minutes 8 hours 55 minutes → 8 hours + 55 minutes → minutes + 55 minutes = Then… 665 minutes + minutes =

  13. Reasoning Mind Academy: Measuring Time Step 4: or change the total number of minutes back into and . A smaller unit (like minutes) converted to a larger unit (like hours) means we will have to. (Hint: What operation do we need to use?)

  14. Reasoning Mind Academy: Measuring Time Step 4 (cont’d): 1 hr. = min (Total minutes) _______________ ÷ 60 minutes = __________hrs. min. **Note: The minutes will be the in the answer to thedivision problem.**

  15. Reasoning Mind Academy: Measuring Time Answer: How long is the flight from Seattle to San Francisco?

  16. Reasoning Mind Academy: Measuring Time Example 2)

  17. Reasoning Mind Academy: Measuring Time Example 3)

  18. Reasoning Mind Academy: Measuring Time Example 4) How much time has elapsed in the following problems? a. 7:37 a.m. to 11:00 a.m. b. 1:20 p.m. to 3:41 p.m. c.Marc started his homework at 6:15 p.m. He took 40 minutes to complete his reading homework, and then he took a 10 minute break. After his break, Marc spent another hour finishing the rest of his work. What time did Marc finish his homework?

  19. Reasoning Mind Academy: Measuring Time Example 5) The first half of a basketball game lasted 1 hour and 16 minutes. The second half of the basketball game lasted 1 hour and 46 minutes. How long did the whole basketball game last?

  20. Reasoning Mind Academy: Measuring Time Example 6) Use the table to answer the questions. • How long is each class period? • b. How much time do students have to get from one class to the next?

  21. Reasoning Mind Academy: “Now, it’s your turn to try!” Independent Practice Problems Helpful Hints: Read the problem twice. Underline any important parts. Make a plan for solving the problem. Show your work, Do your best!

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