Focus on Inquiry: A Teacher's Guide to Implementing Inquiry-based Learning Published by Alberta Learning in 2004, it has a comprehensive appendix with ready-to use handouts to foster student independence and self-assessment.
Inquiry-Based Learning From a teacher in Ontario: this blog shows some of the work students have done, as well as comments on the process of inquiry.
Inquiry Guide - fillable PDF template from the Pacific School of Innovation and Inquiry (PSII).
Inquiry Tools - More information on inquiry from PSII.