Should You Bother Recycling?

This previous school year, my students in Environmental Science led our school’s recycling initiative. They absolutely loved it. From making catchy morning announcements each Tuesday to designing posters and then the thrill of being out of the class and visiting each classroom from Pre-K’s to other 12th-grade classes was a blast for them (and me). We’d get questions such as “what’s the point?” every so often that I hear reflected and diffracted from social media and our general culture. 

However, the experience led to great conversations in class about sustainability, the value of our choices, and how we use materials.

 Yes, recycling is “broken” in many ways, as are numerous systems in our society in 2024. However, I firmly believe that by taking the right actions, we can contribute in small but significant ways at our individual levels to effect positive change. The success of our recycling initiative is a testament to this belief, and it should inspire us all to continue our efforts toward a better, more sustainable future.

Unless someone like you cares a whole awful lot..” and all that. From choosing to be a teacher to choosing to pick up that piece of trash in the store parking lot to choosing to be intentional about how we recycle… those choices add up.

Recycling Is Broken. Should I Even Bother? – The New York Times (gift article):

So, is it worth the effort?

In theory, every item you recycle can keep resources in the ground, avoid greenhouse gases and help keep the environment healthy. And that’s all good.

“The value is in displacing virgin materials,” said Reid Lifset, a research scholar at Yale’s School of the Environment.

But here’s the critical part: Don’t wish-cycle.

Follow the instructions provided by your local hauler. If you throw in stuff they don’t want, the effort needed to weed it out makes it less likely that anything will get recycled at all.

Moving On From Wilson Hall

This week marks the end of a significant chapter in my life as our family says goodbye to Wilson Hall, where I have had the privilege of teaching AP Physics, Environmental Science, and Life Science and coaching golf (and Ben completed 2nd Grade, Emmy completed PK, and Lily was basically born this past school year). It’s hard to encapsulate the depth of my experience in a single post, but as I reflect on my time here, I am filled with gratitude and a sense of accomplishment.

From the early mornings prepping experiments to the late afternoons spent discussing complex theories before heading to the golf course, every moment has been a testament to the power of education and the joy of learning.

One of the highlights of my time here has been the field trips, like the recent one to Charleston, SC. Watching my students engage with the USS Yorktown, explore Fort Sumter, and marvel at the beauty of Magnolia Plantation reminded me why I chose this profession. These experiences extend learning beyond the classroom and foster a deeper connection to the world around us.

To my students: You have been the heart of my experience at Wilson Hall. Your curiosity, resilience, and eagerness to learn have been a constant source of inspiration. Keep questioning, exploring, and pushing the boundaries of your knowledge. The world needs your bright minds and passionate hearts!

As I move on, I am thrilled about the future and the new challenges that await me. I am particularly excited about my latest venture, StudiesLab, where I aim to create an innovative learning environment for gifted young people.

I wrote this 11 years ago when I left Carolina Day in Asheville, and it seems like a good passage to include here as well:

My views and philosophy on education necessitate that I follow a different path. I’m not exactly sure what that looks like (“the woods are lovely dark and deep”). Yet I know that drive will take me and my career down a road that is still covered in snow because I have miles to go before I sleep (beg pardon of Robert Frost there).

So what’s next? I have a couple of interviews at exciting schools but I also have the nagging persistence of StudiesLab.

StudiesLab is a business plan and educational model I’ve had written for years in my head (and on paper) of decentralized, cooperative and authentic education based not on 19th century content delivery for Victorian factory workers but on current research aimed at producing world changers. A place for round pegs in a world of square holes. A prayer for hope and humility and learning.

Or something like that.

Clear Communication of Worth

Petersen here defies what many of us who have spent our lives in academia or adjacent to it in some way feel… the institutional impact of certain places on our careers, our self-judgements, and eventually our self-worth can be crucibles that define our lives for years. Seeing past that is indeed difficult work, especially when we want to confer respect for ourselves and our future students.

Worthy read here whether you’re a teacher, preacher, parent, or trying to figure things out at age 45 like me…

Ten Years Out of Academia – by Anne Helen Petersen:

When it comes to these students, the best gift we can give them — whether they are our children, our advisees, our peers, our employees, or just ourselves — is clear communication of worth. It’s spaces to fail with security and create and build community outside of resume-building. It’s ongoing assurance of their value: not because of their grades, or their ability to “work hard,” but simply because they are. It’s respect, which looks a lot different than surveillance. Creating these environments requires a lot of work, most of it invisible. It’s arduous in part because it requires refusing so many legible norms of “good” parenting or mentorship. But its eventual value is beyond measure.

On Darwin and Sapolsky

I’ve just finished Robert Sapolsky’s (excellent) book, Determined. You should read it for yourself, obviously, but Sapolsky does an expert job of providing the argument that our conception of determinism and what we colloquially call “free will” are to be examined under a much stricter microscope society-wide.

These sorts of philosophical arguments rarely escape the ivory tower of The Academy. However, Sapolsky is a masterful speaker and has attracted a good deal of attention in the mainstream for his seemingly outlandish idea that we do not, in fact, possess free will. 

I think he’s right and on to something monumental. If we took his admonishment with intention and began to examine the structures our society (especially our educational systems) place on behavioralism, exceptionalism, and perceived meritocracy… our society would look quite different. Dare I say it would be more just.

I picked up Darwin’s Descent of Man (1871) this morning and began reading. The beginnings of Chapter 4 here lay out a very similar thought construction about where we gather our conception of morality and sympathy in the context of what he labels natural history. 

I was taken by his statement that:

“We are indeed all conscious that we do possess such sympathetic feelings, but our consciousness does not tell us whether they are instinctive, having originated long ago in the same manner as with the lower animals, or whether they have been acquired by each of us during our early years.”

Reading both of these texts together is an incredible thought experiment!

Podcast: Zane’s Ice Dragon

It’s Monday, and we’re not together in class (weird), but we’ll fix that tomorrow on Optimistic Day. Get some rest, take your vitamins, and drink water… big week ahead! Here’s what is happening in Life Science, Environmental Science, and AP Physics!

Podcast: Friday the 13 is Coming!

Here’s what is in store for our Life Science, Environmental Science, and AP Physics classes this week at Wilson Hall! See https://harrelsonscience.com for more.

Paper Airplanes

I love incorporating paper airplanes into my classroom lessons on dynamics, flight, movement, gravity… the list goes on and on. They’re so applicable to so many scientific principles but also appeal to the curious nature inside all of us that loves to fold and learn…

History of the Paper Airplane: Paper Flight Technology Inspires Drones:

“The magic of a paper airplane is that all of these little flight corrections are happening continuously throughout its flight,” Ristroph says. “The plane is hanging under a vortex that is constantly swelling and shrinking in just the right ways to keep a smooth and level glide.”

Emotions as Constructions

Emotions are not reactions to the world. You are not a passive receiver of sensory input but an active constructor of your emotions.

How Emotions are Made – Lisa Feldman Barrett

Every teacher (and parent) should read this book. It’s transformative on many levels regarding our own personal development and how we should think about the emotional health and support of young people!

Thinking About Screentime

I’ve become much more of a book person as I’ve gotten older. Also, notebooks. That would seem quizzical to my younger self that reveled in every new productivity and reading app released on iOS or Android as I combed through blogs, subreddits, and Twitter lists, looking for the latest and greatest note-taking app.

Alas, getting old is interesting.

Screentime is definitely something that’s been on the front of my mind for the last few decades as I’ve welcomed children into this world (including Lily as of August 1!) and young people ranging from 12 to 18 into my classrooms. 

I plan to read this book, so I’m using this as a space-saver for myself to return to when I’m done (and in the middle of the school year).

Screentime is a fascinating cultural concept. The amount of “screentime” we actually consume is lower than it’s ever been (no, really). But is the measurement of “time” really what we should be focused on or worried about?

Regardless, my students will still have their devices in the “off” mode, and we’ll focus on the great ideas with our brains, pen/cil, paper, and each other’s voices like we’ll continue to not have devices on during dinners or downstairs time here in our home…

A Different Way to Think About Screentime:

Parents have a hard time when they don’t know something. I’ve written this elsewhere, but I think one of the basic things that underlies a lot of the book bannings and pronoun panics from parent-activists on the far-right is the very simple fact that parents don’t know what their kids do all day. My daughter Maeve is 7, and I volunteered this spring to help with a field trip for her first-grade class. The bus was late, and so I ended up just sitting in her classroom for about 45 minutes while the day went on as usual. Maeve is very talkative, and she loves telling us stories about her day, but it wasn’t until I sat in that classroom that I realized how little I actually knew about what the ordinary beats of that day were like, what the social dynamics were, what kind of job her wonderful teacher — hello, Mr. Diego Fernandez — is tasked with doing.

Podcast: Thinking About the New School Year

More shortly! I just wanted to dust off the podcast. Subscribe here or via your podcast player of choice if you’d like (just search for my name).

Are highlights worth it?

One of the biggest revelations I’ve had this summer doing in-depth research on Mind Body Education (thanks to the Center for Transformative Teaching and Learning and Wilson Hall for introducing me to current educational psychology research these past few months) is the value of retrieval practices in classroom learning.

A particular eye-opening part of that summer learning for me is how we process information as learners immediately and in the long-term. This quote from Willingham’s Outsmart Your Brain hit me particularly hard as someone who has been a highlighter for the last 20 or so odd years! I’ll be writing more about these topics in the next few days. Thanks to Readwise for resurfacing this quote from my readings earlier this summer!

Mr. Harrelson (Again)!

Got my classroom name plate for my new classroom and teaching position at Wilson Hall today. I’m teaching 7th grade science, Environmental Science, and Physics. All three subjects should be a blast.

I look forward to this being the last classroom name plate I collect to finish out my career here at Wilson Hall in the next few decades (I still have my others from previous schools)! So exciting!

A Stoic Teacher? Lessons from Marcus Aurelius and Epictetus

Recently, I’ve been delving into a philosophy that’s been around for centuries but feels incredibly relevant to our modern times: Stoicism. In particular, I’ve been engrossed in the works of Marcus Aurelius, his ‘Meditations,’ (there are free versions out there on the web, but this Gregory Hayes version is my favorite), and Epictetus with his ‘Discourses (again, there are free versions available on the web that are easy to find, but this is a great version that I use personally).’ It’s been a transformative experience, which I am compelled to share, as it’s begun to significantly shape my perspective on parenting and teaching.

For those unfamiliar, Stoicism is a philosophy founded in Athens in the 3rd century BC but became especially popular in the first couple centuries of the Roman Empire. It teaches the development of self-control and fortitude as a means to overcome destructive emotions. The Stoic does not seek to extinguish feelings but instead transform them with a resolute ‘askēsis‘ that enables a person to develop clear judgment and inner calm.

Marcus Aurelius, a Stoic philosopher and Roman Emperor wrote ‘Meditations’ as a source of personal guidance and self-improvement. It’s a collection of thoughts, musings, and reminders to himself about the virtues he strived to cultivate—patience, humility, and understanding.

One of my favorite quotes from Aurelius is: “The impediment to action advances action. What stands in the way becomes the way.” This concept, often summarized as “the obstacle is the way,” has profoundly reframed challenges in my life. As a parent and a teacher, numerous unforeseen obstacles arise. Rather than viewing these as setbacks, I now see them as opportunities for growth and learning—for myself and the young minds I’m shaping.

Epictetus, a formerly enslaved person turned philosopher, taught that our reactions are the only things within our control. He said, “We cannot choose our external circumstances, but we can always choose how we respond to them.” This insight has shifted my approach to parenting. When my child gets upset, I can’t always control the situation causing the distress, but I can control my reaction. I can choose patience, understanding, and compassion.

In the classroom, the Discourses of Epictetus have also inspired me to shift my focus from the outcomes of my students to their effort and growth. This approach aligns perfectly with the Stoic emphasis on controlling what’s within our power. I can’t control the grades my students receive, but I can encourage their resilience, their determination, and their love of learning.

Stoicism, focusing on inner strength, self-control, and accepting what we cannot change, provides a robust framework for navigating life’s challenges. As I continue to study and incorporate these principles into my life, I’m better equipped to respond to the demands of parenting and teaching.

My journey into Stoicism is ongoing, and I’m excited to share more insights as they come. If you’re interested in exploring this philosophy, I recommend starting with ‘Meditations’ by Marcus Aurelius and ‘The Discourses by Epictetus (and pick up Pierre Hadot’s The Inner Citadel if you want a deep-dive). Their wisdom is timeless and, as I’ve found, profoundly applicable to our modern lives.

How You Frame Content Determines How You Perceive It

I do love Epictetus’s Enchiridion!

τῶν ὄντων τὰ μέν ἐστιν ἐφ᾽ ἡμῖν, τὰ δὲ οὐκ ἐφ᾽ ἡμῖν should be the opening line of every textbook, Driver’s License manual, Facebook user agreement, and marriage certificate as we move through life. It’s the opening lines of Epictetus’ Handbook (“Some things are up to us, and some are not up to us.”).

Plato, TikTok… skydiving? Yale’s Gendler gives ancient texts a modern spin | YaleNews:

We spent about half a class discussing a pair of images, both of which featured the Serenity Prayer: one was a delicate ceramic plate where the text was surrounded by morning glories and puppy dogs, and the other was the same text in the form of a bicep tattoo surrounded by American flags and tanks. Epictetus’s point is that how you frame content determines how you perceive it. And here we had, with the text of Epictetus, two cases of literal frames, one of which made the text seem gentle and available to those who might feel soothed by it, and the other of which made it seem macho and available to those who self-conceive in that way. So that conversation offered three different weavings of meta in the same place.

Rubik’s Cubes

I always keep a few Rubik’s Cubes in my classroom (and here on my desk at home). My son and daughters think they are fascinating and are constantly “borrowing” them. My students think they are equally entertaining and use them to stay awake during my otherwise boring lessons on Newton’s Laws or the Periodic Table.

Something about Rubik’s Cubes stimulate us and cause us to stop and think, “Hey, I could solve that!” in a way that perhaps no other trinket could do. We love magic with playing cards or juggling, but those require skill and practice.

Rubik’s Cubes, it seems, is a human puzzle that at least seems solvable.  That is precisely why I love them in my classroom and on my desk… here at home. Humans love to solve puzzles when pondering the wider world around them. Go and do likewise.

Also, go watch this if you want to be blown away…

The New Rubik’s Cube World Record Is Just 3.13 Seconds:

In roughly the time it took you to read this sentence, Max Park solved a Rubik’s Cube. With his time of 3.13 seconds, Park bested Yusheng Du’s 2018 mark of 3.47 seconds. Just watch the video above…it’s ridiculous. I love how the judge comes in to preserve the scene as everyone goes bananas.

Something Funny Happened On the Way to Teaching Earth Science

I wasn’t particularly sure how my teaching year would go this year. I knew I was teaching Physics and Physical Science. Both of those are right in my wheelhouse and I enjoy teaching both of those immensely, and I’m incredibly passionate about the topics in those subject areas. However, the big question was Earth Science (and teaching 6th grade, which I’ve never done for an entire year). 

Turns out, I fell in love with my 6th-grade classes and Earth Science has become something of a new passion of mine. I did not see that coming.

Lately, I’ve been reading books on geology and geologic time scales and catastrophic events and listening to audiobooks on plate tectonics and seabed composition, and subscribing to Apple News topics about geophysics, and hydrology… weird.

I’ve always been somewhat interested in Earth Science adjacent topics, obviously. I remember enjoying my own time in an Earth Science class in 8th grade and then in basic geology in college. But having to plan out an entire year and helping to motivate 11, 12, and 13-year-olds to get interested in the water cycle helped me realize just how incredible the topic can be.

Reminding young people that Earth, as we know it, is an incredibly and rapidly ever-changing system and not some static immovable rock where things have always been the same has been such a joy and a privilege. Plus, it’s a humbling reminder of our own human place in the Creation and the Cosmos!

I can’t wait to explore some of these topics with our Upper Schoolers next year in our new Earth & Space Science class that we’re launching next year at TSA!

Chalk Apocalypse

So, when Hagoromo announced that it was going out of business in 2014, it caused a rupture in the math community.”

I referred to it as a chalk apocalypse,” Conrad said. In a panic, mathematicians across America began stockpiling resources in preparation.”

I calculated how many boxes I would need to last 10 to 15 years and I bought that many boxes,” says Lieblich.Dave Bayer took things even further. “I single-handedly bought the rest of the Amazon supply in the middle of the night,” he said.

Source: How a brand of chalk achieved cult status among mathematicians – CNN

I was gifted with an old sliding blackboard in my 2nd year of teaching (and my first year of teaching Physical Science). I loved that board and was sad to leave it later in my career when I went to a new school.

There’s something special about chalk covered hands and the feel of writing on a blackboard to make a point about F=MA or the structure of an atom.

Now I want to go stock up on some Hagoromo and find a good blackboard for my children.

Vannevar Bush’s 1945 essay “As We May Think” on information overload, curation, and open-access science.

Wholly new forms of encyclopedias will appear, ready made with a mesh of associative trails running through them, ready to be dropped into the memex and there amplified.

— Read on www.slate.com/blogs/future_tense/2012/10/11/vannevar_bush_s_1945_essay_as_we_may_think_on_information_overload_curation.html

Differences in Private and Public School Teacher Pay

As a fan of economic theory (by no means an expert), I’ve always tried to rationalize the chasm that exists between private school and public school teacher pay.

Having been both a private school and public school teacher, I’ve had to rationalize this on a whole different level.

Though there are lots of generalities in this article, I do agree with the concluding paragraph here:

The biggest lesson public education can draw from the salary gap isn’t to cut wages, or quash unions, or hold open auditions for unlicensed teachers. The lesson, in fact, has little to do with salaries at all. The moral is that not all teaching jobs are alike. Different school environments make for radically different work, and many teachers find private schools offer a more rewarding experience. Attracting and retaining teachers, then, means more than just raising salaries. It means taking disciplinary obstacles and bureaucratic nonsense out of teachers’ paths.

via Why Are Private-School Teachers Paid Less Than Public-School Teachers? – Ben Orlin – The Atlantic.

My only caveat is that not every private school is the same Dead-Poets-Society engendering experience for teachers. I taught at three very different private schools over the last decade and I had three very different experiences. There were varying levels of responsibilities, overhead, bureaucracies, call for standards etc.

In general, I’ll say that the best schools are where the teachers are happy and passionate about their jobs. How to accomplish that? Get out of the teachers’ way and trust them as the professionals they are (or at least they are hired to be).

I Love Dan Bricklin’s Note Taker HD App


You can use Note Taker HD to take notes, sketch diagrams, quickly and easily jot down names, phone numbers, to-do items, directions, and more. Pages are flexibly organized by date/time last modified, tags, favorites, and more, with thumbnail images of part of each page to help you find them later. Pages may be grouped together as multiple “sheets”. You can also email one or more pages as a single PDF file. VGA output is supported with zoom and pan.

I’ve been using Bricklin’s Note Taker app on my iPhone since last December, but the Note Taker HD app on my new iPad is simply extraordinary.

I cannot wait to get into the lab with my 8th grade students and jot down notes and observations that we can use to better communicate their findings in our Physical Science class next year.

Thank you again for all you do, Dan.

Architectures of Participatory Learning

But the meat of the argument is about how the best explanation for many of the group phenomena we see online, from ICanHazCheezburger to Wikipedia, is that people like sharing with each other and collaborating. Not always, of course. But there are architectures of participation that encourage the kind of sharing and generosity that enriches us all, and by experimenting with them, we can create media and social change that harnesses millions of people to help and amuse each other.

Just got this on my Kindle/iPad/Desktops/iPhone (have I mentioned I love the type of portability the Kindle platform offers and hope that iBooks can replicate that type of cross-platform experience?) and can’t wait to dig in today.

I’m a big Clay Shirky fan (click the link if you need a sample), and I’m hoping this book, along with Daniel Pink’s ongoing work, becomes a pointer I can use when folks ask about the “effectiveness” of my teaching style.

I love the idea of the Teacher/Learner as an Architect. There’s something inherit about teaching that lends itself to the type of mystical and very practical practices of masons-meet-Howard Roark.

We’ll see and I’ll, of course, keep you posted.

Find out what basic safety equipment is in the lab. This affects what kind of activities you can plan. Ask ahead of time if notebooks and other consumable materials have been ordered. Once the school year starts, it’s often hard to get things that are not in inventory. Ask what technology will available to you in the classroom, such as an interactive white board, “clickers,” probeware, cameras, or projection attachments for microscopes. If the school does not provide a laptop you can take home, invest in some USB flash drives you can use to take files to work on at home.

Question from a new teacher


Very relevant and timely info for those of our species lucky enough to be entering the teaching profession but that have no clue what they’re in for…

Ourlast big economic driver was engineering and the first stage of the digital age. At Institute for the Future, in our annual ten-year forecast program, we see an underlying shift to biology as a driver, and what I’m starting to think of as the “global well-being economy.” If biology and the global well-being economy will drive the future, what does that suggest for leaders? How can leaders grow their own empathy with nature and the global well-being economy?

Self-interest and competition will not be enough. Business leaders will still need to drive revenue, increase efficiency, and resolve conflicts, but financial mandates (I win/you lose) won’t be enough. Leaders must expand their view of self and embrace the shared assets and opportunities around them — not just the individual takeaways that will reward them alone. Leaders must learn to give ideas away, trusting that they will get even more back in return.

Leadership, Thinking Ten Years Ahead – Imagining the Future of Leadership – Harvard Business Review


Things to remind myself as I work with my 13 and 14 year old students everyday…

Don Chance, a finance professor at Louisiana State University, says it dawned on him last spring. The semester was ending, and as usual, students were making a pilgrimage to his office, asking for the extra points needed to lift their grades to A’s. “They felt so entitled,” he recalls, “and it just hit me. We can blame Mr. Rogers.

Great Use of Backpack with Pages for Each Day.

work: wed

“I have a page set up for each day of the workweek, and I evenly distribute the action tasks for all of my marketing tactics throughout the week.

On a given day, I simply click on that day’s page and get to work on the tasks, which are within a handy checklist (see image above along the left).

Each Monday, I un-check all the lists on every page, which helps me to stay accountable to my plans and goals for my business. I can clearly see what got done and what did not get done over the previous week. After un-checking the items, I’m ready to begin another week.”

I love this implementation of workflow in Backpack.

Personally, I’m using Backpack in the GTD style (main INBOX for dumping everything then sub-folders pertaining to specific contexts or actions that need to be taken).

However, it would be very cool to do a blend of my GTD style with the daily pages style and incorporate individual classes (since I’ll be teaching 4-5 individual classes).

Clearly, I love todo lists more than actually acting upon them 🙂