Table 2.

Number of observed class periods with indicated characteristics

Characteristics	Number of class periods	Number of faculty membersa
Department
Chemistry	134	39
Biology	80	17
Physics	16	5
Mathematics	11	4
Other	28	8
Course level
Freshman undergraduate	88	20
Sophomore undergraduate	75	20
Upper-division undergraduate	50	19
Graduate	56	19
Class size
1–25 students	69	25
26–50 students	48	15
51–100 students	53	14
101–150 students	34	11
>150 students	65	16
Classroom type
Fixed seating	177	50
Nonfixed desks	45	16
Tables	47	17
Years of faculty experience
0–1 prior years as faculty member	78	28
2–5 prior years as faculty member	40	11
6+ prior years as faculty member	151	36
Observation type
Nonworkshop faculty	68	21
Workshop faculty
Preworkshop	81	31
Postworkshop	120	45

^aSome faculty members were recorded more than once (N = 24) and in different courses (N = 4) across a 2-yr period; therefore, the total number of faculty members per characteristic may be greater than the total number of individual faculty members involved in the study (N = 73).