Designing and Evaluating Experiments Activity Scoring Rubric

Designing and Evaluating Experiments Activity Scoring...

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Designing and Evaluating Experiments: Scoring Rubric (25 pts) Part A: Research Hypothesis – 3 points maximum Performance Description Points A 3-point response demonstrates the student can write a complete research hypothesis with all the parts in the correct order: If hypothesis X is true, and I perform Y methods, then I predict Z as a specific, measurable outcome. Example: If bean plants use CO 2 for growth, and I grow plants under three different concentrations of CO 2 , then the dry mass of bean plants will increase with increasing concentrations of CO 2 . 3 A 1 to 2-point response demonstrates the student a) understands the difference between hypothesis and prediction. Hypothesis: an explanation of an observed phenomenon in nature. Example – bean plants use CO 2 for growth. Prediction: a prophecy of a future event. Example – the dry mass of bean plants will increase with increasing CO 2 . And b) has improved the research hypothesis but the parts may still be out of order. 1-2 A 0-point response demonstrates the student has either not written anything or has simply copied the exact same hypothesis from page 1. 0 Part B: Multiple Choice Questions – 5 points maximum (1 pt each) Performance Description Points Answers: 1. D, Type of plants and amount of O 2 . 2. B, Bean plant dry mass. 3. C, To ensure the amount of CO 2 caused the differences in dry mass. 4. C, Plants use the mineral nutrients to help in the process of making food. 5. B, The dry mass would rise slightly because the rate of photosynthesis limits growth. 0-5
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This note was uploaded on 04/21/2011 for the course BIO 105 taught by Professor Staff during the Winter '08 term at Grand Valley State University.

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Designing and Evaluating Experiments Activity Scoring...

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