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We do: planning together

Now let's plan some together. Whiteboards ready — everyone commits to an answer!

Scenario A: "Which paper towel soaks up the most water?"

Scenario B: "Does a plant grow taller with more light?"

A group says: "Let's give the sunny plant more water too."

Is this still a fair test? Why or why not?

Listen for the magic words: "That's not fair because you changed two things!"

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