tion; they worked together with fellow teachers in their team or department. Crucial reform work takes place in this context.” Collaboration stimulates the reflection that is fundamental to changing beliefs, values, and understandings.

The appropriate professional development is a powerful way for teachers to improve their use of inquiry, as long as it is viewed as support for ongoing learning that is apt to take many years to change teaching practice significantly. Teachers can become wise consumers of professional development as they broaden their images and sources of learning, as well illustrated in Chapter 5.