Evolution and Medicine: An Inquiry-Based High School Curriculum Supplement

Table 4 Teacher evaluation of the materials

Lesson	Difficulty for students	Implementation difficulty for teachers	The lesson was engaging for students	Overall effectiveness
1	3.2 (0.7)	2.7 (1.0)	4.7 (1.1)	5.1 (1.2)
2	3.4 (0.5)	3.2 (0.8)	5.2 (0.7)	5.4 (0.8)
3	3.9 (0.4)	3.1 (0.5)	5.3 (0.7)	5.3 (0.9)
4	3.4 (0.6)	2.9 (0.8)	5.0 (0.8)	4.7 (1.0)
5	3.3 (0.5)	2.6 (1.1)	n/a	4.7 (1.4)

For questions that asked about difficulty of the materials for students and teachers, the following scale was used: 1 = “Extremely Easy,” 2 = “Somewhat Easy,” 3 = “Just Right,” 4 = “Somewhat Difficult,” 5 = “Extremely Difficult.” The question about engagement was scored on a scale from 1 to 6 with 1 = “Strongly Disagree” to 6 = “Strongly Agree.” Overall effectiveness used a scale from 1 to 6 with 1 = “Very Ineffective” to 6 = “Very Effective.” Numbers in parentheses are standard deviations. Lesson 5 was an evaluate activity, so teachers did not comment on whether or not the lesson engaged their students

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