DNA Model Evaluation Rubric Date __________   Class period _____
Name(s)		Score:
This analytic rubric is used to verify and evaluate the quality of specific tasks performed when building a science model.
Category	Scoring Criteria	Points	Student Evaluation	Teacher Evaluation
Documentation 25 points	Model is accompanied by a carefully drawn and clear diagram of the model. The parts listed below in research section are labeled so the diagram may be used as a "key" to understand the model. (This can be done on a separate sheet of paper.. The drawing should include student name, date, class period.)	15
	Model is accompanied by a bibliography/work cited showing at least two research references used in planning the model. Must be cited correctly not just web page. (These can be cited on the lab report under, research.)	10
Report of Research 40 points	Free standing and contain at least 8 paired nitrogen bases. (model stands in a vertical position or no more the 45 degrees.)	10
	Model demonstrates the twisted double helix shape	10
	Nitrogen bases are paired correctly (A-T , G-C)	10
	DNA backbone is constructed correctly (alternating deoxyribose sugar and phosphate molecules)	10
Honors only 15 pts.	Honors biology: Model shows the 5’ and 3’ ends (indicate on model and drawing)	5
	Honors biology: Model displays examples of the phosphodiester and hydrogen bonds	10
Model Construction 20 points	Model demonstrates the student's pride in its careful construction.	10
	The choice of materials for the model indicates the student's use of their creative imagination (no DNA kits).	10
Score	Total Points regular biology Total Points honors biology	85 100
Self-evaluation	Students are expected to honestly evaluate their own work. If the difference between the student evaluation and the teacher evaluation is more than 10 points, 5 points will be deducted from the teacher's score when the grade is recorded.