Category Archives: Philosophy

BIO101 – Biology and the Scientific Method

As you may know, I have been teaching BIO101 (and also the BIO102 Lab) to non-traditional students in an adult education program for about twelve years now. Every now and then I muse about it publicly on the blog (see this, this, this, this, this, this and this for a few short posts about various aspects of it – from the use of videos, to the use of a classroom blog, to the importance of Open Access so students can read primary literature). The quality of students in this program has steadily risen over the years, but I am still highly constrained with time: I have eight 4-hour meetings with the students over eight weeks. In this period I have to teach them all of biology they need for their non-science majors, plus leave enough time for each student to give a presentation (on the science of their favourite plant and animal) and for two exams. Thus I have to strip the lectures to the bare bones, and hope that those bare bones are what non-science majors really need to know: concepts rather than factoids, relationship with the rest of their lives rather than relationship with the other sciences. Thus I follow my lectures with videos and classroom discussions, and their homework consists of finding cool biology videos or articles and posting the links on the classroom blog for all to see. A couple of times I used malaria as a thread that connected all the topics – from cell biology to ecology to physiology to evolution. I think that worked well but it is hard to do. They also write a final paper on some aspect of physiology.

Another new development is that the administration has realized that most of the faculty have been with the school for many years. We are experienced, and apparently we know what we are doing. Thus they recently gave us much more freedom to design our own syllabus instead of following a pre-defined one, as long as the ultimate goals of the class remain the same. I am not exactly sure when am I teaching the BIO101 lectures again (late Fall, Spring?) but I want to start rethinking my class early. I am also worried that, since I am not actively doing research in the lab and thus not following the literature as closely, that some of the things I teach are now out-dated. Not that anyone can possibly keep up with all the advances in all the areas of Biology which is so huge, but at least big updates that affect teaching of introductory courses are stuff I need to know.

I need to catch up and upgrade my lecture notes. And what better way than crowdsource! So, over the new few weeks, I will re-post my old lecture notes (note that they are just intros – discussions and videos etc. follow them in the classroom) and will ask you to fact-check me. If I got something wrong or something is out of date, let me know (but don’t push just your own preferred hypothesis if a question is not yet settled – give me the entire controversy explanation instead). If something is glaringly missing, let me know. If something can be said in a nicer language – edit my sentences. If you are aware of cool images, articles, blog-posts, videos, podcasts, visualizations, animations, games, etc. that can be used to explain these basic concepts, let me know. And at the end, once we do this with all the lectures, let’s discuss the overall syllabus – is there a better way to organize all this material for such a fast-paced class.

Today, we start with the very beginning – the introductory lecture on Biology and the Scientific Method. Follow me under the fold:

Continue reading

UC Berkeley Genetic Testing Affair: Science vs Science Education – guest post by Dr.Marie-Claire Shanahan

Marie-Claire Shanahan is an Assistant Professor of Science Education at the University of Alberta, in Edmonton, Alberta, Canada. As a former science teacher, she was always surprised by the ways that students talked themselves out of liking science – and she decided to do something about it. She now researches the social and cultural aspects of science and science education, especially those related to language and identity.

Marie-Claire and I first met online, then also in Real World when she attended ScienceOnline 2010, after which I interviewed her for my blog. You can check out her website and follow her on Twitter. Very interested in her scholarly work, I asked her if she would write a guest-post on one of her topics, and she very graciously agreed. Here is the post about the Berkeley genetic testing affair.

Outside of issues related to teaching evolution in schools, the words controversy and science education don’t often come into close contact with one another. It would be even rarer to be reporting on legislative intervention aimed at halting science education activities. So what’s going on with the UC Berkeley genetic testing affair?

News started to surface in May that Berkeley was going to be asking incoming first year and transfer students to send in a DNA swab. The idea was to stimulate discussion between students as part of the yearly On the Same Page program. A heated debate ensued that has ultimately lead to proposed state legislation that would bar California’s post secondary institutions from making unsolicited requests for DNA samples from students. Both the controversy and the legislation are excellently reported by Ferris Jabr at Scientific American here and here.

It would be reasonable to assume that this seems controversial because it involves genetic testing and therefore personal information. But is there more to it than that?

I chatted informally with some friends about the issue. One expressed her divided feelings about it saying (roughly quoted) “It seems like they [university admin] have addressed the ethical concerns well by being clear about the use of the swabs and the confidentiality but something still just doesn’t feel right. There’s still a part of me that shivers just a little bit.”

What is the shiver factor? Genetic testing and the idea that institutions might have access to our DNA do conjure some imaginative science fiction possibilities. So that could be causing the shivers. But from my perspective as a science education researcher, I think there’s also an underlying issue that makes this particular situation feel controversial: despite having science education goals, this looks and feels a lot more like science. That look and feel leads to confusion about how this initiative should be judged both from an ethical perspective and an educational one.

Science and science education are not the same thing (nor should they be). One way to think of them is through activity analysis, paying attention to who is involved, what are their objectives and what are the artefacts (e.g., tools, language, symbols), actions, and rules that those involved generally agree are used to accomplish the goals of the activity. Studies in activity theory emphasize the importance of shared understanding for accomplishing and progressing in any activity. I would argue that science and science education are different (though obviously related) activities. They have, in particular, different objectives and different artefacts, rules and actions that guide and shape them. As participants in one or the other (or both), teachers, parents, students, researchers, administrators have both tacit and explicit understandings of what each activity entails – what are the rules, the acceptable tools and practices and the appropriate language.

This is where the Berkeley project places itself in a fuzzy area. The objectives of the project are clearly stated to be educational. From the On the Same Page website: “we decided that involving students directly and personally in an assessment of genetic characteristics of personal relevance would capture their imaginations and lead to a deeper learning experience.” Okay, that sounds like the same reasons teachers and professors choose to do many activities. Sounds like science education.

But what about the tools? Testing students’ blood type or blood pressure uses tools commonly available in high school labs (or even at the drug store). The tools used here though are not commonly available – these samples are being sent to a laboratory for analysis. Participants don’t therefore have a shared perspective that these are the tools of education. They seem like the tools of science.

What about the language? One of the main publically accessible sources of information is the On the Same Page website, in particular an FAQ section for students. It starts with the questions: What new things are going on in the scientific community that make this a good time for an educational effort focused on personalized medicine? and Why did Berkeley decide to tackle the topic of Personalized Medicine? These are answered with appeals to educational discourse – to academic strengths, student opportunities, and the stature of Berkeley as an educational center. The agent or actor in the answers to these questions is the university as an educational institutional: “This type of broad, scholarly discussion of an important societal issue is what makes Berkeley special. From a learning perspective, our goal is to deliver a program that will enrich our students’ education and help contribute to an informed California citizenry.”

Beside these educational questions, however, are questions that are part of the usual language and processes of science: Will students be asked to provide “informed consent” for this test of their DNA? What about students who are minors? How can you assure the confidentiality and privacy of a student’s genetic information? What will happen to the data from this experiment? Has this project been approved by Berkeley’s Human Subjects Institutional Review Board? These questions are the questions that appear in human subjects information letters. They make this sound like this is science. The answers to these questions take a different perspective to the ones above. The technical terms are not educational ones but scientific ones. The actor in these responses is neither the educational institution nor the student as an educational participant but the student as a research object: “All students whether they are minors or not will be asked to provide informed consent. They will read and sign a detailed form describing exactly what will be done with their DNA sample, how the information will be used and secured for confidentiality, how this information might benefit them, and what the alternatives are to submitting a sample.”

Anyone who has done human subjects research will recognize this language is almost word for word from typical guidelines for informed consent documents. My consent forms usually don’t deal with DNA samples (usually something much less exotic, such as student writing or oral contributions during class) but the intent is the same. This language sets out the individuals under consideration as the objects of scientific research.

The overall effect is one of a mixed metaphor – is this research or is it teaching? Are the students actually acting in the role of students or are they the objects of research? What standards should we be using to judge if this is an appropriate action. The materials posted by UC Berkeley suggest that they believe this should be judged as an educational project. But the reaction of bioethicists and advocacy groups (such as the Council for Responsible Genetics) suggests that it be judged by research standards.

Why does it matter? Because the ethical considerations are different. As I said above, I don’t usually deal with any materials that would be considered very controversial. I research the way people (including students) write, read, speak and listen in situations related to science. When dealing with students, many of the activities that I use for research could also be used for educational purposes. For example, in a project this year I distributed different versions of scientific reading materials. I asked students to read these in pairs. I tape recorded their conversations and collected their written responses to the text. As a classroom teacher, these are strategies that I have used for educational purposes. Tape recording students allows me to listen to the struggles they might have had while reading a text. Collecting their written responses allows me to assess their understanding. Parents would not object to their child’s teacher using these tools for these purposes. When I visit a classroom as a researcher though, I am judged differently. Parents often do not consent to me collecting their children’s writing. They object, especially frequently, to my requests to videotape or photograph their children. This is because they rightfully understand educational research as a different activity from education. They use different judgments and expect different standards.

From the sequence of events, it sounds as if Berkeley admin started this project with their own perspective that this was clearly educational without adequate consideration that, from an outside position, it would be judged from a research perspective. I don’t want to suggest that this whole thing is a simple miscommunication because there are serious ethical implications related to asking for DNA samples. As people try to figure out how an educational idea ended up in the state legislature, though, I just wanted to add my perspective that some of the controversy might come from that shiver factor – something just doesn’t feel right. One aspect of that feel might be that this challenges the boundaries of our understanding of the activities of science and science education. The language and the tools and the objectives are mixed, leading to confusion about exactly what standards this should be judged against. As tools that have traditionally been associated with laboratory science become more accessible (as genetic testing is becoming) this boundary is likely to be challenged more and more. Those making the decisions to use these tools for educational, rather than research, purposes need to understand that challenging peoples conceptions of the boundaries between science and science education can and will lead to conflict and that conflict should be addressed head on and from the beginning.

Immanuel Kant Song (video)

Science Saturday: Doctors’ Obligations – ethics by SciBlings

Listen to my SciBlings Janet and Pal,MD discuss scientific and medical ethics:

Participate in an experiment – how do you compare to philosophers on solving moral dilemmas?

Eric Schwitzgebel, Associate Professor in the Department of Philosophy at the University of California, Riverside, and Fiery Cushman, a psychology post-doc at Harvard, are conducting an online experiment which involves comparing philosophers’ and non-philosophers’ responses to questions about moral dilemmas.
They got plenty of philosophers to do the experiments, but they need more non-philosophers for the comparison group. Their “Moral Sense Test” asks respondents for their takes on various moral dilemmas. They say that people who have taken other versions of this test have found it interesting to ponder the moral dilemmas they ask about. The test should take about 15-20 minutes and can be found at http://moral.wjh.harvard.edu/eric1/test/testN.html.
Please help them out by doing the experiment and telling others as well.

The Human & The Humanities

From The National Humanities Center:

The National Humanities Center will host the third and final conference on “The Human & The Humanities,” November 13 – 15, 2008, once again attracting scientists and humanities scholars to discuss how developments in science are challenging traditional notions of “the human.” Events will begin on the evening of November 13 with a lecture from noted neurologist and author Oliver Sacks at the William and Ida Friday Center in Chapel Hill, NC.
This event is free, but guests must register in advance to guarantee seating.
Other speakers and special guests confirmed for Friday and Saturday’s sessions at the National Humanities Center include:
Anthony Appiah, Princeton University
Patricia Churchland, University of California, San Diego
Michael Gazzaniga, University of California, Santa Barbara
Michael Gillespie, Duke University
Katherine Hayles, Duke University
David Krakauer, Santa Fe Institute
Jesse Prinz, University of North Carolina, Chapel Hill
Peter Railton, University of Michigan
Robert Sapolsky, Stanford University
Raymond Tallis, University of Manchester
Holden Thorp, University of North Carolina, Chapel Hill
Mark Turner, Case Western Reserve University
The entire conference is open to the public. A registration fee of $30 provides admission to all sessions along with meals during Friday and Saturday’s events.
To register for either the Oliver Sacks lecture or the ASC conference, please click here or visit http://asc.nhc.rtp.nc.us to learn more about the ASC initiative.

Systems Biology – Obligatory Readings of the Day

Alex, Dan and John Wilkins have wise things to say about metaphors in biology, Big Biology and a recent article by Sir Paul Nurse.