I have not developed any content for secondary school, and the material I have developed for grad classes may not be of much use to anyone with a different teaching style from mine The one document that I can think of that is portable and suitable for sexondary school is http://www.soe.ucsc.edu/~karplus/bme205/f05/darling-model/build-peptides.html and the accompanying homework assignment http://www.soe.ucsc.edu/~karplus/bme205/f06/paper1-darling.html These are on building backbones of proteins using the Darling model kits. Incidentally, if you haven't looked at the Darling models, I highly recommend them. They are the only general-purpose kit I have found that models peptide planes and hydrogram bonds well, and thus the only model I've found that is suitable for use in protein modeling. I have no objections to these documents being distributed in a free DVD, though I would object to anyone making a profit off my work without giving me a fair share (and I get to define what is fair). I would be interested in getting the DVD, as I have been looking for materials suitable for my son's school to use. ------------------------------------------------------------ Kevin Karplus karplus at soe.ucsc.edu http://www.soe.ucsc.edu/~karplus Professor of Biomolecular Engineering, University of California, Santa Cruz Undergraduate and Graduate Director, Bioinformatics (Senior member, IEEE) (Board of Directors & Chair of Education Committee, ISCB) life member (LAB, Adventure Cycling, American Youth Hostels) Effective Cycling Instructor #218-ck (lapsed) Affiliations for identification only.