Time difference between digital clocks

Time difference between digital clocks

I can determine time differences between digital clocks to the minute.

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Time difference between digital clocks

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In this lesson, students will practice determining the time difference or elapsed time between digital clocks. Students will be given the skills to find the time that has passed between two events. They will learn the “Mountain Method” to calculate elapsed time with whole hours, half hours, quarter hours, and to the nearest minute. Then, students will complete several activities in which they practice calculating elapsed time.



Learning Objective

Students will be able to properly calculate elapsed time with digital clocks.


Students will review how to read digital clocks properly. Then students will discuss their answers to 3 elapsed time word problems with their classmates.


The lesson will begin with students writing down what they already know about digital clocks and elapsed time. Then students will watch a video in which they review how to utilize the “Mountain Method” to solve for elapsed time. Students will be guided through an example, then be asked to solve a word problem on their own by utilizing the mountain method and dragging the symbols. Then students will complete several activities to practice what they learned in the lesson, including solving for the elapsed time in a fall-themed activity and competing in an elapsed time Gynzy Game Show with their classmates.


Students respond to ten multiple-choice questions to practice determining elapsed time.


Students will calculate the elapsed time from the time they get in line to the time they get on two rides at their favorite amusement park.

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Gynzy is an online teaching platform for interactive whiteboards and displays in schools.

With a focus on elementary education, Gynzy’s Whiteboard, digital tools, and activities make it easy for teachers to save time building lessons, increase student engagement, and make classroom management more efficient.

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