Exploring Elapsed Time Concepts

The video tutorial explains how to calculate elapsed time, which is the duration between a start and an end time. It introduces two methods: the flower method, which uses visual hops on a clock, and the number line method, which uses a linear representation. The tutorial provides examples with different start and end times, including scenarios where the time crosses 12 o'clock. The video emphasizes counting hours and offers tips for avoiding common mistakes.

What is elapsed time?

• A method to slow down time

• A type of clock

• Time between a start and end point

• Time taken for an event to occur

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CCSS.3.MD.A.1

How many hours are between 3 o'clock and 7 o'clock using the flower method?

• Three hours

• Five hours

• Four hours

• Six hours

Tags

CCSS.3.MD.A.1

What does each petal in the flower method represent?

• Minutes

• Seconds

• Days

• Hours

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CCSS.1.MD.B.3

How many hops are there from 3 to 7 on a number line?

• Five hops

• Four hops

• Six hops

• Three hops

Which methods can be used to calculate elapsed time?

• Sun dial and water clock methods

• Flower and number line methods

• Stopwatch and timer methods

• Digital and analog methods

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CCSS.3.MD.A.1

What is the elapsed time from 7:30 to 9:30?

• Four hours

• Three hours

• Two hours

• One hour

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CCSS.3.MD.A.1

Can the flower method be used for times not on the hour?

• Yes, it works the same

• No, it only works on the hour

• It's not recommended

• Only with special clocks

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CCSS.3.MD.A.1

How many hours elapse from 9:15 AM to 2:15 PM?

• Four hours

• Seven hours

• Five hours

• Six hours

Tags

CCSS.3.MD.A.1

What should you remember when counting hours past 12 o'clock?

• Count backwards

• Reset counting at 1

• Stop counting

• Start counting from 13

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CCSS.2.MD.C.7

What is the correct way to count elapsed time using fingers from 9:15 to 2:15?

• Count each finger as half an hour

• Use only one hand

• Ignore the minutes

• Count each finger as one hour

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CCSS.1.MD.B.3