Wednesday, April 6, 2016

Moving from misconceptions to useful starting points
Meredith Thompson

           The fact that there are so many misunderstandings of scientific ideas implies that learning science is not easy. It’s not always a good match for the knowledge we have already built from experience. My six year old son Zachary and I were talking about the reason why things float. At one point, Zachary replied “Mom, that’s your science. I’m talking about my science”. Zachary’s comment is pertinent to misconceptions. In our daily lives we all develop a “science” when we find ways to explain what happens and why. Squeezing a balloon makes it pop. Water boils faster in a pressure cooker. Shaking a soda can makes it get bubbly. These ideas are useful and reinforced by everyday experience. However, individuals see these phenomena as distinct and following different rules. Scientists see everything as following fewer, more abstract rules (force of pressure on molecules).  Sometimes there is evidence to support their ideas (ideal gas law, force per unit area, atomic theory of matter), but often the evidence is as unfamiliar as the new set of rules that science suggests. 

            What if we recognized that scientific concepts are difficult to accept? Maybe students who develop and retain “misconceptions” are actually being “scientific”. Like any good scientist, a student creates theories about how the world works. Sometimes these theories don’t align with science, resulting in a misconception. Students who remain unconvinced based on evidence that does not fit with their worldview are also being scientific. As teachers, our job is to find relevant, meaningful evidence to help us make the case for our alternative view of the world. As students, it’s our job to suspend disbelief long enough to “see” a different way of looking at things, and do our best to understand the supporting evidence. Viewed this way, the gap between scientific explanations and evidence that is acceptable to the students are not misconceptions, they are missed connections.

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