Teaching the pH concept to non-formal operational students in the ninth-grade biology laboratory

Baird J. . (1984), ‘Improving Learning Through Enhanced Metacognition’, D. Phil, thesis, Monash University.

Bender D. S. , and Milkovsky L. . (1982), ‘College chemistry and Piaget: the relationship of aptitude and achievement measures’, Journal of Research in Science Teaching, 19(3), 205–16.

Bromage B. K. , and Mayer R. E. . (1986), ‘Quantitative and qualitative effects of repetition on learning from technical texts’, Journal of Educational Psychology, 78(4), 271–7.

Campbell D. T. , and Stanley J. C. . (1963), Experimental and Quasi-Experimental Designs for Research. Boston: Houghton Mifflin.

Case R. . (1979), ‘Intellectual development and instruction: a neo-Piagetian view’, in Lawson A. E. (ed.), The Psychology of Teaching for Thinking and Creativity, Colombus, OH: Educational Resources Information Center (ERIC).

Charlton R. E. . (1980), ‘Teacher-to-teacher cognitive style considerations for the improvement of biology education’, American Biology Teacher, 42(4), 244–7.

Farmer W. A. , and Farrell M. A. . (1980), Systematic Instruction in Science for the Middle and High School Years, Reading, Mass.: Addison Wesley.

Farrell M. A. , and Farmer W. A. . (1985), ‘Adolescents’ performance on a sequence of proportional reasoning tasks’, Journal of Research in Science Teaching, 22(6), 503–18.

Fishbein E. , Pampu I. , and Minzat U. . (1970), ‘Effects of age and instruction on combinatory abilities in children’, The British Journal of Educational Psychology, 40, 261–70.

Green C. E. , and Szabo M. . (1979), ‘Effects of reduced reading levels on achievement in ISCS’, Science Education, 63(1), 37–44.

Herron J. . (1975), ‘Piaget for chemists’, Journal of Chemical Education, 52, 146–51.

Hofstein A. , and Mandler V. . (1982), ‘Israeli Students’ Concrete and Formal Ability and their Achievements in Mathematics and the Sciences’, paper presented at the National Association of Research in Science Teaching (NARST) conference, Lake Geneva.

Hofstein A. , and Lunetta V. N. . (1982), ‘The role of the laboratory in science teaching: neglected aspects of research’, Review of Educational Research, 52(2), 201–17.

Howe A. C. , and Durr B. P. . (1982), ‘Analysis of an instructional unit for level of cognitive demand’, Journal of Research in Science Teaching, 19(3), 217–24.

Ingle R. B. . (1984), ‘Nuffield chemistry in Britain, 1961-1982, Part II: evaluation and revision of O-Level publications’, Science Education, 68(5), 541–61.

Ingle R. B. , and Shayer M. . (1971), ‘Conceptual demands in Nuffield chemistry’, Educational Chemistry, 8, 182–3.

Jurachek W. , and Grady M. T. . (1981), ‘Format variations on equilibrium in the balance’, Journal of Research in Science Teaching, 18(1), 47–9.

Karplus R. . (1977), ‘Science teaching and the development of reasoning’, Journal of Research in Science Teaching, 14, 169–74.

Lawrenz F. , and Munch T. W. . (1984), ‘The effect of grouping of laboratory students on selected educational outcomes’, Journal of Research in Science Teaching, 21(7), 669–708.

Lawson A. E. . (1978), ‘The development and validation of a classroom test of formal reasoning’, Journal of Research in Science Teaching, 15(1), 11–24.

Lawson A. E. . (1985), ‘A review of research on formal reasoning and science teaching’, Journal of Research in Science Teaching, 22(7), 569–617.

Lawson A. E. , Lawson D. I. , and Lawson C. A. . (1984), ‘Proportional reasoning and linguistic abilities required for hypothetico-deductive reasoning’, Journal of Research in Science Teaching, 21(2), 119–31.

Lawson A. E. , and Renner J. W. . (1974), ‘A quantitative analysis of responses to Piagetian tasks and its implication for the curriculum’, Science Education, 58, 545–59.

Lazarowitz R. , and Huppert J. . (1981), ‘The development of individualized audio-visual learning units in junior high school biology and students’ achievements’, European Journal of Science Education, 3(2), 195–204.

Linn M. C. , and Pulos S. . (1983), ‘Aptitude and experience influence on proportional reasoning during adolescence: focus on male-female differences’, Journal of Research in Mathematics Education, 14(1), 30–46.

Onslow B. . (1976), ‘A Multiple-Choice Test on Ratios for Determining Piagetian Developmental Levels’, unpublished M.Sc. thesis, University of Calgary.

Schneider L. S. , and Renner J. W. . (1980), ‘Concrete and formal teaching’, Journal of Research in Science Teaching, 17(6), 503–17.

Shayer M. . (1972), ‘Conceptual demands in the Nuffield 0-Level physics course’, Social Sciences review, 54, 26–34.

Shayer M. . (1978), ‘The analysis of scientific curricula for Piagetian levels of demand’, Studies in Science Education, 5, 115–30.

Staver J. R. , and Pascarella E. T. . (1984), ‘The effect of method and format on the responses of subjects to Piagetian reasoning problems’, Journal of Research in Science Teaching, 21(3), 305–14.