The University of British Columbia is moving towards emphasizing and improving the practice of peer review of teaching. This website explains the project and its history: http://ctlt.ubc.ca/about-isotl/programs-events/ubc-peer-review-of-teaching-initiative/
I have recently received a draft of a set of guidelines for the Faculty of Arts, a draft that is still in development so what I say below may change. But still, I find the whole project very interesting and potentially quite valuable.
Explanation and evaluation of some specific aspects of the program:
1. Data sources for peer evaluation of teaching are wider than just one class visit. The guidelines give several options for other sources, stating that not all of these need to be used. Some options: course materials, such as syllabi, assignment instructions, even possibly samples of student work; one or more meetings with the instructor; meeting with students; statement of teaching philosophy; past student evaluation results; contributions to curriculum or new course development; innovations in teaching practices and/or use of technology; evidence of professional development re: teaching beyond the classroom; evidence of reflection upon teaching; teaching load (number and types of courses); grad students supervised; grad student publications and awards; information solicited from grad students. This seems an excellent way to get a better picture of someone’s teaching capacities than just visiting one course meeting. Of course, it has to be handled carefully within departments so that what is requested of each person in terms of documentation is relatively uniform so as to avoid perceptions of unfairness. Considerations of workload come in here too–gathering and looking over this information can take a significant amount of time and effort, on the part of both the reviewer and the instructor him/herself.