GRADE 12 SCIENCE · CHAPTER 1
Engineering & design
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Engineering design
Explain a design choice using stated priorities
Use a transparent weighted model to compare design tradeoffs and recognize that the choice depends on the priorities.
AN EXAMPLE FROM THIS CHAPTER
Design A: performance 90, resource score 50. Design B: performance 70, resource score 80.
The stated rule is score = × performance + × resource score. Higher values are preferred for both measures. Which design has the higher score, or are they tied?
Show answer & explanation
A tie under this scoring rule
A scores × 90 + × 50 = 74. B scores × 70 + × 80 = 74. This rule gives a tie under this scoring rule; changing the weights could change the decision.
Curriculum & source notes
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