Roberts, Douglas A.MacDonald, Dougal Alan George2005-07-292005-07-2919950612041883http://hdl.handle.net/1880/29600Bibliography: p. 189-198.xii, 236 leaves ; 30 cm.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.LB 1585 M233 1995Science - Study and teaching (Secondary)Science - Curriculadoctoral thesis10.11575/PRISM/20341LB 1585 M233 1995