Clickory

Classroom mode

Run it in class

Why are heavy things hard to push?

Show of hands — before you project anything

What do all three choices predict about the same starting setup?

  • A Way more than you'd guess
  • B About what you'd guess
  • C Way less than you'd guess

Count the votes out loud. Hold them to it — then watch.

Project it (fullscreen)

Discussion prompts

  • What do all three choices predict about the same starting setup?
  • Which general clue from the earlier pages applies to this new case?
  • What would you hold fixed in a fair follow-up test?

Where it shows up in real life

  • A child pushes a blue chair and coral couch to the right; a long blue arrow and short coral arrow show their different motion distances.
  • A child walks left while pulling an empty wagon and a loaded wagon; a bold blue ground arrow also points left.
  • The same child moves the couch with a helper so their combined push is visibly larger.

A prediction-first worksheet — no answer key.

zero prep · no login · any projector

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