1. The nature of science and instructional practice: Making the unnatural natural
2. (2002). Use of a computer environment to analyze the coherence of argumentation about policies proposed to ameliorate global warming. Paper presented at the annual meeting of the American Educational Research Association, New Orleans (ERIC Document Reproduction Service No. ED 464 952).
3. American Association for the Advancement of Science (1990). Science for all Americans. New York: Oxford University Press.
4. Science and ethics: Some issues for education
5. (1982). Philosophical ethics: An introduction to moral philosophy. New York: McGraw-Hill.