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Lesson: Elapsed Time Across am and pm Mathematics • 5th Grade

In this lesson, we will learn how to calculate elapsed time by adding or subtracting the start time and the end time in the same or different time formats of am and pm using a number line.

Lesson Plan

Students will be able to

use models to calculate elapsed time,
calculate elapsed time using addition or subtraction,
calculate start or end times using addition or subtraction,
solve elapsed time problems involving unit of time conversions.

Lesson Worksheet

Q1:

When it is 3 o’clock at night, what will the clock look like?

Q2:

Determine the elapsed time from 07:52 am to 06:47 pm.

Q3:

Determine the elapsed time from 09:37 pm to 04:11 am.

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