Saskatchewan Education. (1991). Instructional Approaches: A Framework for Professional Practice. Regina.
Saskatchewan Education: Saskatchewan Outdoor and Environmental Education Association. (1991). Out to Learn: Guidelines and Standards for Outdoor Environmental Education. Regina.
University of Waterloo (editors L.J. Brubacher, J.L. Candido, J.B. Capindale, W.A.E. McBryde, A.D. Prudham). (1992). CHEM 13 News. Waterloo, ON N2L 3G1. (519) 885-1211 extension 2505.
Note: Please refer also to Science 10: A Curriculum Guide for the Seconary Level, for other references of interest.