When I was in sixth grade, my homeroom teacher brought monarch caterpillars into our classroom. One of our homework assignments was to walk around our backyard and find milkweed (the only kind of plant monarch caterpillars eat) to feed our caterpillars. Now, over 25 years later, I still clearly remember the excitement of hunting around in my backyard to find milkweed and checking every day to see the metamorphosis from caterpillar to butterfly.
You might say that raising monarch caterpillars gave me the bug to want to be a biologist.
An early interest in biology sparks a lifelong dedication
As the years went by, my interest in biology didn’t wane. In college, molecular biology became my primary focus area. During graduate school and beyond, I trained in both molecular biology and the learning sciences, settling into a career in biology education. I taught Non-Majors and Majors Biology while running a research lab dedicated to understanding how people learn biology.
A lack of enthusiasm from students
When I taught Non-Majors Biology, I noticed a concerning trend among my students: All in all, they didn’t like biology.
That may be too gentle. The comments from an “introduce yourself” activity that I use in the first week of class revealed that most of my students were either afraid to take a biology class, thought the subject was boring, or didn’t think they could succeed at it. Some people even flat-out admitted they hated the subject.
Now, as a self-professed biology nerd, those comments took me aback. As a learning sciences researcher, I wanted to know why there were such pervasive negative feelings about biology. As a biology educator, I wanted to know what to do about it.
A common point of view
Negative perceptions around biology are common, driving people away from engaging with the big biology issues we face today. Lack of knowledge around scientific topics can make it easier to be duped by misinformation, leading one to potentially make decisions against their own best interests. We see this with issues ranging from climate change to vaccines.
Acknowledging that biology is all around us is important not only because it enriches our lives, but because it’s also important to the health and welfare of our society. Biology is everywhere, and engagement starts with reimagining how we think about biology’s role in our lives. It’s about reigniting wonder and emphasizing relevance. It’s about giving students the chance to learn biological material in a way that makes sense to them. When we start to make connections between the classroom and the real world, it becomes easier to engage with bigger concepts and ideas.
Connecting biology to the everyday
Let’s look at hand washing, as an example of how to relate lipid biochemistry to our everyday routines.
Okay, fine, we all know we’re supposed to do it, and yet nasty microorganisms like norovirus (transmitted mainly by the fecal-oral route, ahem) still tend to spread rampantly. Isn’t hand sanitizer sufficient? Or Lysol? The soap dispenser is out again — does it matter?
According to the Centers for Disease Control, hand sanitizer doesn’t work well against norovirus. Think of norovirus as wearing a protective coat — hand sanitizer doesn’t penetrate, and since the virus doesn’t readily dry out on surfaces, it remains ready to infect on the surface of the skin. In order to effectively remove the virus, you have to use soap and water and rub your hands together. Why?
Soap particles have water-repellant and water-loving components. Those water-repellant portions, combined with rubbing your hands back in forth, causes the virus to break apart. The soap particles surround the bits of virus, and water washes it away.
If I talked about the structure of soap as a fatty acid with a carboxylic acid functional group, sodium ion, and fatty acid tail, and how with other fatty acids, it forms a micelle in water, students’ eyes would glaze over. On the contrast, breaking down the basics of why hand-washing works to illustrate the biochemistry proves far more interesting.
Impacting student perceptions
When biological principles are applied to our daily lives, they become inherently interesting. When students realize they can understand the biological principles behind their daily experiences, it becomes accessible. By viewing biology through a personal lens, students learn to appreciate rather than hate the subject.
When students see biology everywhere, as an integral part of their lives, they are more likely to engage. As they engage, they realize they can understand biology, and that it’s actually interesting.
Think back to the opening example — my homework was looking in my backyard for milkweed to feed to the classroom caterpillars. Biology was relatable and accessible and that made it exciting. That’s the driving framework behind my biology education practice. I always consider the relevancy in students’ lives as the main touchstone in my teaching practice.
What is something that you can do in your classroom to bring your own excitement about the material in? What kind of real-world examples can you bring into your classroom? Come tell me about it on social media!
Written by Dr. Melanie Peffer, Teaching Assistant Professor and Research Scientist Level II at the University of Colorado Boulder, and author of “Biology for Life: A Guide to Our Living World,” 1e.
Interested in this first edition text for your biology course? Look for Peffer’s first edition text, “Biology for Life: A Guide to Our Living World,” 1e coming spring, 2025, and check out other available biology titles on the discipline page.
