Tag Archives: natural selection

Natural Selection in Tortoises: A (Homemade) Video

[Doug Gaffin and Marielle Hoefnagels worked together to develop the materials used in this post.] A while back, I wrote a post on an activity that connects genotype, phenotype, and natural selection. In a nutshell, the activity uses colored chips … Continue reading

Posted in Active learning, Evolution | Tagged , , , , , , , , , , , | 1 Comment

Another Way to Connect Selection, Phenotype, and Genotype

Now that it’s summer, I’m catching up on my American Biology Teacher backlog. I found this interesting-looking activity by Janina Jördens and three coauthors in the February 2018 issue. The title of the article says it all: “Interrelating Concepts from … Continue reading

Posted in Evolution, Laboratory activities, Teaching | Tagged , , , , , , , , , , , | 3 Comments

Antibiotic-Resistant Bacteria: A Simple, Realistic Lab Activity

Every now and then I write a blog post about lab activities that worked in my nonmajors biology class. For example, I have written about reptilobirds (an activity combining meiosis and inheritance), staining banana cells to illustrate digestion in plants, … Continue reading

Posted in Evolution, Laboratory activities | Tagged , , , , , , , , , , , | 328 Comments

Recognizing purposeful evolution: A treasure trove of prompts

  I was recently cleaning out my teaching lab and found a stash of index cards with test items from the early 1950s. As I was trying to decide whether to keep them or toss them in the recycling bin, … Continue reading

Posted in Assessment, Evolution, Teaching | Tagged , , , , , | 10 Comments

“Surprisingly Awesome” podcasts

What do broccoli, pigeons, frequent flyer miles, and mattresses have in common? They are all subjects of “Surprisingly Awesome” podcasts. I just listened to the one on broccoli, and I was really impressed. I love resources that help students see … Continue reading

Posted in Engaging students, Evolution, Podcast, Teaching | Tagged , , , , , , , , , , , , , | 2 Comments

Return of the “Clever Cockroaches”

Longtime followers of my blog may remember that nearly two years ago I wrote a post about the misrepresentation of natural selection and evolution in headlines and news stories. In the study that prompted the post, researchers found that coating … Continue reading

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Growing a Thicker Skin: A Borrowed Lab Activity

Skimming through the August 2015 issue of The American Biology Teacher, I found a lab activity that I am eager to try. It’s by Troy R. Nash, Suann Yang, and John C. Inman of Presbyterian College, and it’s called “Growing a Thicker … Continue reading

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Video recommendation: HHMI’s Biology of Skin Color

Over a year ago I mentioned the HHMI Biointeractive site and its excellent videos. I just viewed another one on the same site. This one is called The Biology of Skin Color, and it is another winner. It is narrated by … Continue reading

Posted in Evolution | Tagged , , , , , , | 1 Comment

Teaching the Biomes: A Different Approach

I feel like I can do a pretty good job lecturing on most topics at a level that will hold the attention of nonmajors, but two exceptions are cell organelles and biomes. Don’t get me wrong — I love teaching … Continue reading

Posted in Active learning, Ecology, Engaging students, Evolution, Experimental design, Teaching | Tagged , , , , , , , , | 2 Comments

Two Outstanding Videos: One for Natural Selection and One for the Genome

My recent post about natural selection misconceptions prompted a comment from a colleague who endorsed the educational value of Howard Hughes Medical Institute videos and learning materials. I spent some time on HHMI’s BioInteractive site to see what I could … Continue reading

Posted in Engaging students, Evolution, Learning at home, Teaching, Videos | Tagged , , , , , , , , , , | 2 Comments