Calculating Elapsed Time Concepts

Miss Buard explains how to calculate elapsed time by using an open timeline. She provides an example of a shopping trip, starting at 3:10 PM and ending at 4:25 PM, and demonstrates two methods to calculate the elapsed time. The first method involves adding time in chunks to reach the next hour, while the second method adds a full hour and calculates the remaining minutes. Both methods result in a total elapsed time of 75 minutes, which is then converted to 1 hour and 15 minutes.

What is elapsed time?

• The time from the start to the end of an event.

• The time it takes to solve a problem.

• The time it takes to complete a task.

• The time it takes to travel from one place to another.

What information do we need to calculate elapsed time?

• The distance between two points.

• The speed of an object.

• The number of participants in an event.

• The starting and ending times of an event.

At what time did Miss Buard start shopping?

• 4:25 p.m.

• 4:10 p.m.

• 3:10 p.m.

• 3:25 p.m.

How long did Miss Buard spend shopping?

• 25 minutes

• 1 hour

• 50 minutes

• 1 hour and 15 minutes

What is the first step in calculating elapsed time using an open timeline?

• Plot the ending time on the timeline.

• Plot the starting time on the timeline.

• Add the starting time to the ending time.

• Subtract the ending time from the starting time.

How many minutes are there from 3:10 to 4:00?

• 70 minutes

• 50 minutes

• 60 minutes

• 40 minutes

What is the elapsed time from 4:00 to 4:25?

• 30 minutes

• 25 minutes

• 15 minutes

• 20 minutes

What is the total elapsed time calculated using the first method?

• 50 minutes

• 90 minutes

• 75 minutes

• 60 minutes

In the second method, what is added to 3:10 to reach 4:10?

• 50 minutes

• 15 minutes

• 1 hour

• 25 minutes

What is the difference in minutes between 4:10 and 4:25?

• 15 minutes

• 10 minutes

• 20 minutes

• 25 minutes