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Why do builders need so many big machines?
Force Olympics Unit | Lesson 2 of 6

Why do builders need so many big machines?

Force Olympics Unit | Lesson 2 of 6
Lesson narration:
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Optional Activity: Forces at Work

Watch these big machines work. Think about what each machine does. Discuss with your class.

What does the dump truck do?

What does the truck-crane do?

What does the bulldozer do?

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Slide Image
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push


1 of 3

to move an object away from you
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pull


2 of 3

to move an object toward you
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machine


3 of 3

a tool that uses pushes and pulls to do something
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Lesson narration:

Grade K

Pushes & Pulls

Pushes, Pulls, & “Work Words”

K-PS2-1

Activity Prep

Print Prep

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In this Read-Along lesson, Vivian watches a house being built and wonders why the builders need so many big machines. The lesson includes a short exercise where students act out the “work words” of their favorite machine. You can extend the lesson with the optional activity, Forces at Work, where students watch videos of construction equipment and practice using work words to describe what the machines are doing.

Preview optional activity

Grade K

Pushes & Pulls

Pushes, Pulls, & “Work Words”

K-PS2-1

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