We don’t just learn Physics—we build it.
Live, online, and hands-on physics classes for curious kids. Through real experiments, guided discovery, and moments of genuine excitement, students experience how physics actually works. Led by Princeton physicist Dr. Katerina Visnjic.
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“This is THE best interactive, hands-on science class!
I highly recommend it for confidence-building and it sets a great foundation for the study of physics!“
-Parent of Miriam, age 11
Real experiments. Genuine curiosity.
Students work directly with physical systems like circuits to take their own measurements and collect data. They explore physics through investigation, experimentation, and discovery.
Along the way, students test predictions, troubleshoot unexpected results, and use evidence to refine their ideas about how the physical world works.
Meet Dr. Kat
Hello! I’m Dr. Katerina Visnjic, a Senior Lecturer of Physics at Princeton University—though my younger students know me as Dr. Kat. For over a decade, I’ve focused on rethinking how physics is taught—developing research-based methods that make learning more engaging, intuitive, and meaningful.
In my classes, students don’t just learn established ideas—they use observation, experimentation, and reasoning to create knowledge for themselves. The goal is not only to ask, “What do we know?” but also, “How do we know what we know?”
I’m also a mom of three, which shapes how I create a supportive environment where students can explore, take risks, and build confidence.
What students experience
Real experiments
Students build, measure, test, and troubleshoot real physics systems—not simulations or canned demos.
Scientific thinking
Students make predictions, compare them with evidence, and revise their ideas. They don’t just learn physics—they learn how to figure things out.
Support & community
Learning doesn’t stop when class ends. Through our Slack space, students share ideas, ask questions, and get support throughout the week.
What families are saying
“Learning to use the equipment was a great way to build some independence in our homeschool environment.”
– parent of Miriam, age 11
“He used to rely mostly on simulations. Now he wants to experiment and test his own ideas.”
– parent of Alex, age 8
“She’s always been shy, but now I see her scientific curiosity coming to the forefront. She engages with her classmates in ways I haven’t seen before.“
– parent of Akshu, age 10
Ready to explore?
Stay informed about upcoming classes