Science Education News (SEN) Journal 2017 Volume 66 Number 4 December 2017 | Page 47

GENERAL ARTICLES Simplistic Advice for Teachers on How to Teach Won’t Work By Vaughan Prain and Russell Tytler way to teach. In this approach, the emphasis is on teachers explicitly explaining course material, rather than highly-active student roles. These strategies seem plausible, but we have concerns about their narrow view of teacher practice, their unconvincing “scientific” evidence base, and their limited view of the curriculum, teacher and student roles, and the capabilities required of students this century. Narrow teacher practice These strategies may be individually useful, but fail to explain why, when and how (and how often) any strategy might be used alone or in combination with others. These lists also fail to recognise that effective teaching is built on positive relationships with students as individuals and as a class, and on responsiveness and creativity in teacher practice. Teachers must use their professional understanding and reasoning to assess the value of the proposed strategies and when, how and why they should be incorporated into their teaching Measurement methods As noted in the work of multiple education experts, there are flaws in the statistical methods on which these claims are based. The main problems relate to how effect sizes are calculated and comparing them across different contexts. Behind these seductively precise numbers lie studies that vary considerably in context, design and outcomes. Big data analysis is now widespread in many fields, including education. Education systems look for large-scale evidence- based accounts of “what works” to frame teaching and learning policy. At the very least, teachers need to use their own professional understanding and practical reasoning to assess the value of the proposed strategies and when, how and why they should be incorporated into their teaching. More analysis is also necessary to identify the conditions under which what versions of these strategies are useful. After trying many methods, it seems timely and reasonable to use big data sets, or aggregations of multiple studies, to identify effect sizes of different teaching strategies and advise teachers on how to optimise learning. Effect sizes entail comparisons of the extent of learning outcomes, usually measured by standardised tests. Departments of Education in Victoria and NSW are now applying this approach to teacher guidance. The limited curriculum While this drive to base advice on solid evidence is positive, the type of evidence being selected is questionable. It tends to distort accounts of teaching and learning. The strategies outlined in HITs also imply a very traditional view of learning as mastery of pre-packaged teacher content. They fail to suggest how teachers might promote student creativity, critical thinking and problem-solving. The first example is the Victorian High Impact Teaching Strategies (HITS). Teachers are encouraged to set clear goals, structure lessons, teach through explanation, model solutions, provide feedback on what students should do next, let students collaborate, and adjust each learning experience to individual learners’ needs. These lists also fail to acknowledge the possibility of students making reasoning moves outside those orchestrated by the teacher. By this we mean students might come up with productive contributions that might surpass what the teacher has planned for. The second is the New South Wales example. Teachers are advised that explicit teaching, based on effect size, is the best However, these student capabilities are now seen as crucial in many national curricula for promoting individual, group and 47 SCIENCE EDUCATIONAL NEWS VOL 66 NO 4