Okay, But…
Micro-lessons
7 pieces across our series Topics are editorial, not automatic: an editor assigns them, and a piece can sit in more than one.
Start with these
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Force: what are you asking the pull to do?
One question: When a zipper resists, is pulling harder the only useful change? What you'll explain: Identify a hand's pull and its direction, then…
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Fair, Repeated Trials
OKAY, BUT… HOW? · A closer look Question: How can you tell whether a changed release point helps? You’ll be able to: Plan a…
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Finish Speed versus Arrival Time
OKAY, BUT… HOW? · A closer look Question: Can two journeys end at the same speed but take different amounts of time? You’ll be…
Everything in Micro-lessons
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Where the Motion Energy Goes
OKAY, BUT… HOW? · A closer look Question: When a marble slows on a real track, has its energy disappeared? You’ll be able to:…
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Rolling versus Sliding
OKAY, BUT… HOW? · A closer look Question: What is a rolling marble doing besides moving forward? You’ll be able to: Identify travelling and…
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Vertical Drop versus Distance
OKAY, BUT… HOW? · A closer look Question: Does a longer route mean a slower finish? You’ll be able to: Distinguish route length from…
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Height into Motion
OKAY, BUT… HOW? · A closer look Question: What does a higher starting point give a marble? You’ll be able to: Compare two release…