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Laws and Explanations in Biology and Chemistry: Philosophical Perspectives and Educational Implications

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Abstract

This chapter utilises scholarship in philosophy of biology and philosophy of chemistry to produce meaningful implications for biology and chemistry education. The primary purpose for studying philosophical literature is to identify different perspectives on the nature of laws and explanations within these disciplines. The goal is not to resolve ongoing debates about the nature of laws and explanations but to consider their multiple forms and purposes in ways that promote deep and practical understanding of biological and chemical knowledge in educational contexts. Most studies on the nature of science in science education tend to focus on general features of scientific knowledge and underemphasise disciplinary nuances. The authors aim to contribute to science education research by focusing on the characterisations of laws and explanations in biology and chemistry in the philosophical literature and illustrating how the typical coverage of biology and chemistry textbooks does not problematise meta-perspectives on the nature of laws and explanations. The chapter concludes with suggestions for making science teaching, learning and curriculum more inclusive of the epistemological dimensions of biology and chemistry.

An earlier version of this paper was presented at the 2011 IHPST conference and published in F. Seroglou, V. Koulountzos and A. Siatras (Eds), Science & culture: Promise, challenge and demand. Proceedings for the 11th International IHPST and 6th Greek History, Philosophy and Science Teaching Joint Conference. 1–5 July 2011, Thessaloniki, Greece: Epikentro

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Notes

  1. 1.

    See for example Duschl (1990), Hodson (1988), Matthews (1994/2014) and Schwab (1958, 1978).

  2. 2.

    For example, see Giere (1988), Harré (1988), Hesse (1970), Pitt (1988), Salmon (1987), and Scriven (1970).

  3. 3.

    The Latin ceteris paribus stands for ‘all things being equal’: ceteris paribus laws are laws that have exceptions, often contrasted with strict or ‘real’ laws (Garvey 2007).

  4. 4.

    In his review of early textbooks, Marks (2008) notes that, initially, Mendel’s Law was often presented in the singular in contrast to Galton’s Law of Ancestral Heredity as evident in Punnett’s 1905 textbook and most other genetics textbooks of the first generation. In his 1909 book, Bateson contrasted Galton’s Law against the Mendelian ‘’scheme’, ‘principles’, ‘phenomena’, ‘methods’, ‘analysis’, ‘facts”. (Marks 2008, p. 250). First references to Mendel’s Law of Segregation and Law of Independent Assortment appeared in Morgan’s second book in 1916 and were further detailed in his 1919 book The Physical Basis of Heredity.

  5. 5.

    The three textbooks reviewed in this section are BSCS (2003), Campbell et al. (2009), and SEPUP (2011).

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Acknowledgements

 The authors wish to thank the five anonymous referees who provided valuable feedback on earlier versions of this chapter.

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Correspondence to Zoubeida R. Dagher .

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Appendix

Appendix

Source of potential confusion about structural explanations in a high school chemistry textbook (Reproduced from Hsu et al. 2010, p. 541).

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Dagher, Z.R., Erduran, S. (2014). Laws and Explanations in Biology and Chemistry: Philosophical Perspectives and Educational Implications. In: Matthews, M. (eds) International Handbook of Research in History, Philosophy and Science Teaching. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-7654-8_37

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