Design a magnetic paper model

Supplied materials

• All measurements and observations below are supplied classroom examples. They are not data from actual learners or a claim about a particular real site.
• Paper, drawing space or a browser document.
• Reference card A: opposite poles draw a marker closer. Reference card B: matching poles push a marker apart.
• Assessment case 1: Which scientific label fits the specifically described step or feature? Supplied case: Goal pulls the paper marker nearer.
• Assessment case 2: Which scientific label fits the specifically described step or feature? Supplied case: Goal pushes the marker away.
• Assessment case 3: Which scientific label fits the specifically described step or feature? Supplied case: Goal checks two gaps with the same magnet.
• Assessment case 4: Which scientific label fits the specifically described step or feature? Supplied case: Drawing cannot measure force strength.
• Assessment case 5: Which scientific label fits the specifically described step or feature? Supplied case: N-S pairing models pulling together.
• Assessment case 6: Which scientific label fits the specifically described step or feature? Supplied case: N-N pairing models pushing apart.

Learn the idea

A proposed design should use the interaction needed for its purpose. Supplied arrow diagrams stand in for hardware. Do not use small magnets, batteries or magnetic toys.

Attraction design means opposite poles draw a marker closer. Repulsion design means matching poles push a marker apart. Comparison means matched trials test one change. Limitation means paper model omits real strength and distance effects.

For attraction design, look for the clue “opposite poles draw a marker closer.” For repulsion design, look for “matching poles push a marker apart.” More than one process can happen in a real situation. Answer about the one described in this question.

1. Read or listen to the four science words and what each means. Say how the first two differ.
2. Choose two of the short cases. Point to the clue that helps you choose a science word for each one. You may draw or say your answer.
3. Answer each practice question. Say which clue helped you, then check the explanation.
4. Use the extra task to make two examples that show different science words. Draw or say what makes each one fit.

Check your reasoning

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Take it further

Create one new case showing attraction design and one showing repulsion design. Expected: the first explicitly shows “opposite poles draw a marker closer”; the second explicitly shows “matching poles push a marker apart.” Explain the distinction by drawing, speaking or writing. A label without a matching feature is incomplete.

Nothing here is saved to an account or sent to a teacher. The answer download includes your current choice and any checked feedback. It does not include choices from the separate More practice section. Download that section separately.