March 11, 2026, 5:01 a.m. CT

Peter Graven, a science and robotics teacher at Deer Creek Intermediate School in the St. Francis School District, said his job focuses on big science and engineering ideas. That can involve modeling what’s really happening in the world; other times it involves diving into topics using blended learning strategies.
“It’s a balance of curiosity, creativity and helping students connect abstract ideas to real-world experiences,” he said.
His favorite science lesson to teach? All things geology, he says.
“When you really think about how dynamic Earth is, it’s mind-blowing. We’re spinning while revolving around the sun. The Atlantic Ocean is expanding more than two centimeters every year. Mount Everest gets a little taller annually. There are more than 50 earthquakes every day and countless active volcanoes. And that’s before you even get into rocks, fossils or astronomy, like the fact that the moon rotates and revolves around Earth at the same rate. Once students realize how alive our planet really is, their curiosity takes over,” Graven said.
Here’s what else Graven told us about his curiosity, his family and more.
You said you’re always wanting to learn and explore. Where do you think that curiosity comes from?
That curiosity probably comes from a mix of how I’m wired and the environments I’ve been part of.
I’ve always been someone who likes to figure out how things work, whether it’s taking something apart (the first was a toaster), asking why a system operates the way it does or wondering how an idea could be made better. That mindset naturally pushes me to explore and ask more questions. Over time, teaching has only amplified that. When you’re surrounded by students every day, you can’t help but model curiosity. If I expect them to explore, take risks and try new things, I need to be doing the same.
Travel has also fueled that curiosity. Experiences like living in Costa Rica, exploring national parks or touring manufacturing facilities showed me how much there is beyond what we see every day. Once you realize how big the world is, culturally, scientifically, technologically, it’s hard not to want to keep learning.
I also think curiosity grows when you’ve seen what happens because of it. Partnerships, projects, robotics collaborations, travel opportunities, all of those started with a question: “What if?” or “Why not?” When those questions turn into real experiences for students and my own family, it reinforces the habit of staying curious.
At its core, I think it comes from believing that learning isn’t something you finish. It’s something you live.
Tell me a bit about your family and what you like to do together.
My family is made up of my two boys, my wife and our dog, Ollie. My oldest is a junior at Rufus King, and my younger son is in eighth grade at Highland Community School. They’re both active, curious and keep life busy in the best way. My better half co-owns Tailored Salon in Walker’s Point with her business partner, and she brings the same creativity and work ethic to her business that we try to model at home. And then there’s Ollie, our Bernedoodle, who truly believes every person he meets is his new best friend.As a family, we love soccer; it’s a big part of our lives, and we spend a lot of time traveling and exploring together. From adventures in Costa Rica to visits to our national parks, we value experiences over things. For us, it’s the memories, the road trips, and the time together that are priceless.
Tell me more about your Costa Rica trip.
Our Costa Rica experience actually began with what felt like a disaster. A holiday trip was canceled during the 2022 “Snowmageddon” and Southwest’s operational meltdown. At the time, it was frustrating, but it ultimately became a blessing in disguise. Instead of a short winter getaway, we pivoted and spent the summer living in Costa Rica, which gave us a far more immersive experience.
We traveled throughout the country, staying in different regions so we could experience the diversity of landscapes and ecosystems. Some days were spent at the beach, soaking in the Pacific and spotting whales off the coast. Other days we explored the rainforest, hiked near waterfalls and visited the hot springs around Arenal Volcano. We slowed down enough to really live there, shopping locally, trying new foods, practicing Spanish and learning firsthand about the country’s biodiversity and culture.
It wasn’t just a vacation; it was a season of living abroad together. That unexpected change of plans turned into the trip of a lifetime, one that deepened our appreciation for travel, flexibility and saying yes when opportunity presents itself.
What are some of your favorite local places?
Having summers off gives me the chance to go searching for those hidden gems to experience with my boys. It was definitely easier when they were younger, but I still make it a mission to find unique places that surprise us.
Some of those discoveries have come through Open Doors Milwaukee, where we’ve explored spaces you don’t normally get access to. We toured manufacturing facilities like Twigs Beverage in Shawano, visited the Mid-Continent Railway Museum in North Freedom to step back into transportation history, and even walked through the Amazon Fulfillment Center in Oak Creek to see robotics operating at scale. One unexpected highlight was climbing the North Point Lighthouse for the first time and stumbling across a display that some of my students had created years earlier; it was one of those full-circle moments.
There isn’t just one hidden gem; there are dozens scattered throughout Wisconsin. I love discovering places that combine history, engineering, innovation or storytelling. And every summer, I’m back on the hunt for the next experience that sparks curiosity, for my kids and, honestly, for me too.
Who’s someone who’s had a big influence on your life?
A huge influence in my life was my dad. He was a 6’6” gentle giant, quiet, steady and incredibly wise. He worked hard, but no matter how busy life got, he always carved out time for our family. He led more by example than by words. As I’ve grown older, I see so many of his qualities in myself: his calm presence, his work ethic and his commitment to showing up for the people who matter most. A lot of who I am today traces back to him.
From an educational standpoint, my eighth-grade algebra teacher, Mr. Dan Birr, had a lasting impact on me. He had a way of connecting math to real life, and to sports (even if it meant tying lessons to the Broncos now and then). He made math feel relevant and engaging, and he sparked a genuine love for the subject. That love took a brief hit in high school geometry, but thankfully rebounded the next year with another strong teacher.
Mr. Birr showed me that how you teach matters just as much as what you teach. The freedom and creativity I bring into my classroom today, the real-world connections, the energy, the storytelling, can be traced back to sitting in his class. Between my dad’s example and Mr. Birr’s influence, I’ve been shaped by both character and craft.
Hallway Voices is a weekly column during the school year where public school staff answer five questions about their work and life. Contact Alec Johnson at 262-875-9469 or alec.johnson@jrn.com to nominate an educator, staff member or volunteer you think we should feature.
