Child Development and Pedagogy · Pedagogy
Students attempting to measure the resistivity of a metal wire find highly inconsistent readings. What is the best pedagogical step?
- 1Have them copy standard calibration charts into their lab journals
- 2Guide students to analyze contact resistance, wire uniformity, and measurement errors✓
- 3Instruct them to memorize the resistivity constants of common metals
- 4Provide the correct standard resistivity value from a data book
Correct answer
Guide students to analyze contact resistance, wire uniformity, and measurement errors
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