A quick post on a busy Monday... FYI -- David M. Clark, SUNY New Paltz, has recently published an IBL Euclidean Geometry book. It is flexible enough to be used at many levels. It has been successfully used in high school, college, and in a masters program in Math Education, with emphasis on inservice teachers. It is appropriate for HS teachers, college faculty who teach Euclidean Geometry, and faculty who teach in a masters in Math Teaching or masters in Math Ed.
Here's the link to book on the publisher's website:
Euclidean Geometry: A Guided Inquiry Approach