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Problem Solving with Time

Problem Solving with Time. Skip counting and number lines. The objective for today is to:. I can tell what time it is and how much time has passed by using a number line or by skip counting. Vocab Kickboxing!.

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Problem Solving with Time

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  1. Problem Solving with Time Skip counting and number lines

  2. The objective for today is to: • I can tell what time it is and how much time has passed by using a number line or by skip counting.

  3. Vocab Kickboxing! Skip counting= counting ahead or backwards by the same number2 Special Rules: ou & ingOther consonants: 6Other vowels: 1 Number line= line with even distance between each data point2 Special Rules: er& silent eOther consonants: 5Other vowels:2

  4. Review skip counting • Skip count by 5! 0, 5, 10, 15…. • Skip count by 10!0, 10, 20, 30… • Skip count by 15!0, 15, 30… • How does skip counting by 5, 10, or 15 make it easier for us to tell time?

  5. Practice with skip counting!

  6. Practice with benchmark times!

  7. Practice with benchmark times!

  8. Practice with benchmark times!

  9. Practice with a word problem! • Christine has 12 math problems for homework. It takes her 5 minutes to complete each problem. How many minutes does it take Christine to finish all 12 problems? • Hint: Use a multiplication strategy! 12 x 5 = 60 It takes Christine 60 minutes to finish all 12 problems. 5 5 5 5 5 5 5 5 5 5 5 5

  10. Practice with a word problem! • Use your ruler to draw a 12 cm number line. • How many 5 minute intervals will the number line need to represent a total of 60 minutes? • How can we make sure our intervals are evenly spaced? • Draw your number line! 

  11. Practice with a word problem! • How many minutes are labeled on our number line? • We start math at 10:00 and end at 11:00 today. Where would I put the 10 and 11 o’clock on our number line? • If we start centers at 10:25, where would that be on our number line? • If the first rotation only lasts 15 minutes, where would that be on our number line? What time would that represent? • How many more centers could we do before math time is over? 15 15 10 10 10 20 25 15 5 5 5 10:00 11:00 10:25 10:40

  12. Your turn! • Practice page 2.A.21-22 • Exit ticket

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