Elapsed Time Challenge

This video tutorial introduces the concept of elapsed time, explaining how to calculate the time that has passed between two events. It covers various methods such as using number lines and clocks, and provides multiple examples to illustrate these techniques. The tutorial also discusses how to find start or end times when given the elapsed time, emphasizing mental math skills and flexibility in choosing counting methods.

What does 'elapsed time' refer to?

• Time in the future

• Time that is currently passing

• Time that has already passed from start to end

• Time on a stopwatch

Which hand on the clock is the hour hand?

• The hand that moves slowest

• The hand that moves fastest

• The shortest hand

• The longest hand

How many minutes are there in one hour?

• 24 minutes

• 30 minutes

• 60 minutes

• 100 minutes

In the example, how long did Ava's movie last?

• 53 minutes

• 40 minutes

• 50 minutes

• 43 minutes

What is the main purpose of using a number line in time calculation?

• To calculate elapsed time

• To measure distance

• To add numbers

• To draw straight lines

What is the result of subtracting 4:10 from 4:53 using the subtraction method?

• 53 minutes

• 43 minutes

• 10 minutes

• 40 minutes

If a start time is 1:15 and the elapsed time is 25 minutes, what is the end time?

• 1:30

• 1:45

• 1:50

• 1:40

How do you find the start time if you know the end time and the elapsed time?

• Divide the end time by the elapsed time

• Multiply the elapsed time with the end time

• Subtract the elapsed time from the end time

• Add the elapsed time to the end time

What is the correct way to calculate elapsed time using a clock?

• Counting the numbers backward

• Skipping by fives and ones as needed

• Adding the numbers continuously

• None of the above

If the elapsed time is 30 minutes and the start time is 11:45 AM, what is the end time?

• 12:30 PM

• 11:15 AM

• 12:00 PM

• 12:15 PM