As someone who is heavily invested in inquiry/exploration/discovery/investigation-based teaching, I found Zhang’s paper quite interesting. Zhang’s major issue with exploration-based teaching is the lack supporting evidence for it from randomized controlled studies and correlational studies, and that the program-based studies that have been “dominant in driving education practices” in the direction of exploration-based teaching aren’t controlled. Zhang goes so far as to say “the development of students’ science conceptual knowledge is not best obtained by having students go through exploration-based investigation activities.” While randomized controlled studies may be the gold standard of research, in this case, I think they may be too limiting. The efficacy of investigation-based teaching practices depend on the experience of the teacher in leading them, which may not be accounted for in a randomized-controlled study. Even if they do account for teacher experience and efficacy, and Zhang’s conclusion (that students learning through investigation-based means results in less understanding than a more traditional, direct-instruction approach) might be true in the short-term span of such a study, but may not account for lasting impacts on student learning and understanding of concepts and material. Investigation-based teaching, led by an experienced teacher, may result in longer-lasting and more robust comprehension than direct teaching—which might make it easier for students to “learn” material, if learning is measured by regurgitation of facts on a test. I also think that Zhang’s focus on contrasting investigation-based teaching with direct instruction sets up a false dichotomy. In AST at the local middle school, for example, students develop sophisticated understandings of concepts through investigation, but once the understanding is developed, teachers provide the “science words” for what students have investigated, observed, and understood. What students call “grabam” during their investigation becomes gravitational potential energy during direct instruction.
Throughout this reading of Furtak and Penuel, I was even more irritated with the discussion of the shortcomings of using the term “hands-on” as a short cut for practice/process/investigation-based learning because I am not a prescriptivist. Language changes and evolves constantly, and I don’t think the words people use are especially important as long as there is a shared understanding of what is meant by them. F&P seem concerned that there is NOT a shared understanding of the term “hands-on” and that the general understanding of the term is very limited as compared to the actual processes and practices of science education as informed by the Framework/NGSS. I wonder how much of this gap actually exists in the minds of “the public” and how much it matters. Larkin suggests that it’s very important to a “loss averse” public, who might interpret the evolution of science education practices as a loss—perhaps a shift from content-heavy learning to concept-rich understanding—but, really, can’t science educators and science education researchers talk to “the public” in a way that helps them understand without arguing about how best to do it through academic journals?
Osborne sways me toward thinking of “minds-on” as a more apt description of the process/practice/investigative approach of the Framework/NGSS, and, while I agree with most of his points (science education is oriented to explaining phenomena, explanations of phenomena can involve struggling with difficult ideas, discourse is important to evaluating explanations, etc.), I do not agree that commonsense reasoning consistently fails to explain what we know about the world. Like language, what we think of as commonsense reasoning is ever-evolving and is influenced by more developed understanding of science concepts, by technology, and by access to information. For example, it is no longer commonsense reasoning to believe that thunder and lightning are caused by beings in the sky. I also disagree with Osborne’s assertion that science education’s purpose is to help students understand old knowledge, while science’s purpose is to discover new knowledge. At its best, I think, science education does both.
I agreed most with Parsons and with Hammer & Manz. Both take the approach that science education is not an either/or proposition. Parsons says “Learning is a complex social activity that occurs within a convoluted ecosystem” and that hands-on and minds-on approached inform each other. Hammer & Manz say that practices that are productive for scientists are also productive for students because “scientists are professional learners.” This comes closest to my belief about the relationship between science and science education.
Finally, I appreciated F&P’s assertions in the final paper of this group that science is not an exclusionary practice intended just for some people and that the traditional sage-on-the-stage approach to teaching marginalizes students’ experiences and their abilities to construct their own knowledge. Science is for everyone.