COMMENTARY The Case for ‘Story-driven’ Biology Education Peter Schattner Department of Biomolecular Engineering, University of California, Santa Cruz, USA Peter Schattner, Department of Biomolecular Engineering, University of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95065, USA. Tel: 1-650-574-7694. Email: schattner@soe.ucsc.edu. The application of story-driven teaching methods to introductory genetics and molecular biology courses for non-biology majors is described. Examples illustrating the contrasts between the story-driven and more traditional approaches are presented, and the potential advantages of the story-driven approach as well as some of its limitations are considered. Keywords: story-driven learning; student motivation; scientific literacy; genetics; molecular biology Introduction Can learning molecular biology and genetics be enjoyable? Of course it can. Biologists know their field is exciting and fascinating and that learning how cells and molecules shape the living world is extraordinarily interesting. But can students who are not already inclined toward science also be convinced that learning molecular biology is worthwhile? For example, students taking biology simply to satisfy an academic distribution requirement, or ones with previous negative school experiences that made them believe that science is boring and irrelevant? Is it possible to persuade such students that learning molecular biology and genetics can be fun? Of course, one might assert that the role of science educators is not to make learning fun, but to simply introduce concepts in a clear and coherent manner. However, I would claim that without motivating students, the amount of comprehension and Schattner 1 COMMENTARY retention will be limited. And there is evidence that introductory biology and genetics courses for non-majors are far from ideal. For example, a 2008 study using a ‘genetic literacy test’ found that scores among non-science majors increased only 6 percentage points, from 43% to 49%, after taking an introductory biology and genetics course (Bowling et al. 2008). Realizing that increasing student motivation might improve student understanding and test scores, educators have begun to include content intended to better motivate students. Nevertheless, I believe that the steps taken to date have been limited and that alternate approaches, with greater emphasis on motivating and even entertaining students, would improve both student motivation and test performance. Traditional curriculum models Traditional genetics and molecular biology curricula typically use either a ‘historydriven’ or a ‘principles-driven’ approach. In the history-driven curriculum, the student is led through the history of the field, typically starting with Mendel's peas, moving on to Morgan and Muller's fruit flies, on to Watson and Crick's discovery of the structure of DNA and eventually – if there is enough time – maybe even to the sequencing of the human genome. Although the historical approach can shed light on how scientific progress is made, it may be less desirable for an introductory course. Scientific history is filled with blind alleys and the clearest way of looking at a scientific phenomenon often only emerges after misleading false starts. Because of the limitations of the history-driven approach, many biology texts and curricula are instead organized in a principles-driven manner, in which scientific principles are organized in the most logical manner, irrespective of when concepts were first discovered. So, for example, DNA transcription and RNA translation are presented in one or two chapters describing how polymerases transcribe DNA into messenger Schattner 2 COMMENTARY RNA and how ribosomes then translate RNA into protein. In addition, there might be discussions of transcriptional regulation and RNA splicing. Although the principles-driven approach for presenting biological concepts has advantages, it also has drawbacks. It can lead to the inclusion of too much detail and too little motivation. Consequently, popular introductory biology texts, such as (Reece et al. 2014) and (Starr, Evers, and Starr 2014) – earlier editions of which were the most widely used biology texts for non-majors (Hott et al. 2002) – now often include modules, sidebars, introductory essays and the like to persuade non-science students that the concepts in their biology course are relevant to them. This is a step in the right direction. Yet I believe it is too small a step: A simple scan of the tables of contents of these leading biology books shows that rarely is more than 10% of the text devoted to motivating topics (Reece et al. 2014; Starr, Evers, and Starr 2014). Moreover, these topics are often presented as side issues illustrating biological principles, rather than as central themes with potentially greater interest to non-majors than biology itself. Story-driven learning In contrast to principles-driven approaches, in story-driven learning, concepts are presented in using a variety of human issues, with stories that illustrate those concepts. Story-driven learning is not new. Over the last 20 years it has been used in teaching environments ranging from elementary school education (Jetton 1994) to military leadership programs (Gordon 2009). Story-driven techniques have also been proposed for teaching biology, for example by (Wilson 2002) and (Strube 1994), but concrete examples are few. A small study that also attempted to evaluate the effectiveness of story-driven teaching is the thesis by (Reuer 2012). The Salters-Nuffield Advanced Biology (SNAB) course is a much larger project that also espouses the spirit of story-driven learning (Hall 2003). Schattner 3 COMMENTARY However, there are differences between SNAB and the present approach. Although SNAB is described as being “taught through real-life biological contexts” (Reiss 2005), examination of the text (University of York Science Education Group 2008) shows that the motivating contexts again occupy less than approximately 10% of the text. Moreover, the contexts are generally limited to human diseases and natural resource conservation. A more clear-cut example of the approach described here is the recent book, Sex, Love and DNA: What Molecular Biology Teaches Us About Being Human (Schattner 2014). In Sex, Love and DNA, each chapter is devoted to a human concern that superficially may not even be about biology – for example ‘What is Love?’, ‘What is Sex?’, ‘What is Language?’ or ‘What is Happiness?’ These topics are illustrated by stories that present puzzling or unexpected situations, such as a man without a Y chromosome, rodents whose ‘love life’ is determined by the presence or absence of a single gene, or a family half of whose members are unable to talk. Only after the student has been ‘hooked’ by the story and been persuaded that the general topic is of interest, are the biological concepts needed to understand the story presented. As an illustration of the differences between the principles-driven and storydriven approach, let us return to the example of DNA transcription and RNA translation. In contrast to the principles-driven presentation of these concepts described above, in the story-driven approach used in (Schattner 2014), transcription and translation are introduced via a general topic – immunity to a dread disease – and through the story of Steve Crohn, a man who had such immunity (specifically, immunity to HIV because of mutations in his CCR5 T-cell receptor genes.) In order to understand Crohn's HIV immunity, students need to learn about proteins, receptors and ligands, how DNA specifies protein shape, and how protein shape affects protein Schattner 4 COMMENTARY functioning. In contrast, neither gene regulation, messenger RNA, nor RNA splicing are necessary for understanding HIV immunity, and consequently they are not introduced until later chapters when they are needed to understand stories of intellectual disability, or the inheritance of human language ability, respectively. Of course, the ultimate goal is still to teach the fundamental concepts of molecular biology and genetics. But the teaching strategy is different; it is to persuade students that they want to learn these concepts. Or in the words of one book reviewer: the objective is to create a learning environment that ‘raises a feeling similar to watching one of those fascinating National Geographic specials—the one where you are so entertained, you do not realize you are learning’ (Schaefer 2014). To be sure, the arguments in this commentary are largely speculative. To my knowledge, with the exception of a single study of 18 students (Reuer 2012), the evidence supporting story-driven biology teaching is so far anecdotal (e.g. reader reviews of a story-driven biology book: www.amazon.com/Sex-Love-DNA-MolecularBiology/dp/0991422511). The next step is the introduction of story-driven teaching methods into environments where quantitative learning measures, such as genetic literacy tests, are available for assessment of educational effectiveness. That will be the true test of the efficacy of story-based teaching of biology. I look forward to seeing the results of such investigations with optimism and anticipation. References Bowling, B. V., C. A. Huether, L. Wang, M. F. Myers, G. C. Markle, G. E. Dean, E. E. Acra, F.P. Wray, and G.A. Jacob. 2008. ‘Genetic Literacy of Undergraduate Non–Science Majors and the Impact of Introductory Biology and Genetics Courses.’ BioScience 58(7):654-660. Gordon, A. 2009. ‘Story-Based Learning Environments.’ In The PSI Handbook of Virtual Environments for Training and Education: Developments for the Military and Beyond, edited by D. Nicholson, D. Schmorrow and J. Cohn. Westport, CT: Praeger Security International. Schattner 5 COMMENTARY Hall, A., M. J. Reiss, C. Rowell, and A. Scott. 2003. "Designing and implementing a new advanced level biology course." Journal of Biological Education 37(4): 162-167. Hott, A.M., C.A. Huether, J.D. McInerney, C. Christianson, R. Fowler, H. Bender, J. Jenkins, A. Wysocki, G. Markle, and R. Karp 2002. ‘Genetics Content in Introductory Biology Courses for Non-Science Majors: Theory and Practice.’ BioScience 52(11):1024-1035. Jetton, T.L. 1994. ‘Information-Driven Versus Story-Driven: What Children Remember When They Are Read Informal Stories.’ Reading Psychology 15(2):109-130. Reece, J.B., M.R. Taylor, E.J. Simon, J.L. Dickey, and K.A. Hogan. 2014. Campbell Biology: Concepts and Connections, 8th Edition. San Francisco: Benjamin Cummings. Reiss, M.J. 2005 "SNAB: a new advanced level biology course." Journal of Biological Education 39(2):56-57. Reuer, M.D. . 2012. Backroads to Learning : the Use of Narratives in High School Biology, Montana State University, Bozeman, MT. Schaefer, R. 2014. 'Book Review: Sex, Love and DNA: What Molecular Biology Teaches Us About Being Human.' New York Journal of Books Available from http://www.nyjournalofbooks.com/book-review/sex-love-and-dna-whatmolecular-biology-teaches-us-about-being-human. Schattner, P. 2014. Sex, Love and DNA: What Molecular Biology Teaches Us About Being Human. Foster City, CA: Olingo Press. Starr, C., C. Evers, and L. Starr. 2014. Biology: Concepts and Applications, 9th Edition. Stanford, CT: Cengage Learning. Strube, P. 1994. ‘Narrative in the science curriculum.’ Research in Science Education 24:313-321. University of York Science Education Group. 2008. Salters Nuffield Advanced Biology Oxford UK: Heinemann Educational Publishers. Wilson, E.O. 2002. 'The Power of Story'. American Educator, 10-12. Schattner 6