✍️ Articles by Dr. Peter Esperanza

Real Talk on
Teaching Online.

No fluff. No theory without practice. Just honest reflections from a math professor who has been flipping classrooms, recording videos, and teaching across 10+ countries since 2012.

🔄 Flipped Classroom 🎬 EduTuber Tips 📐 Math Education 💻 Online Teaching 🧑‍🏫 Teacher Growth
From the Classroom to the Camera

A new article on flipping, teaching, and EduTubing — published the first or second week of every month. Next post: June 2026.

5 Flipped Classroom Mistakes I Made
5 Flipped Classroom Mistakes I Made (So You Don't Have To)
The 5 lies I believed in year one of flipping my math class — including the one that almost made me quit. (Plus a behind-the-scenes video proving even ADEs get head-butted by their own whiteboard.)
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How to Become an EduTuber
How to Become an EduTuber: What I Wish I Knew Before Starting YouTube
From 9 monthly views to 345K subscribers. The 8 lessons I wish someone slid across the table to me before I clicked PUBLIC. (Includes the video of Google flying me from Barstow to Manila for my first YouTube event.)
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The 5-Minute Rule for Teaching Videos
The 5-Minute Rule: Why Your Teaching Videos Should Never Be Longer
I tried recording my full 50-minute classroom lesson with no cuts. Nobody watched it. Here's why 5 minutes wins — and how I prep one in 10. (Includes my whole MacBook + Home Depot whiteboard rig on video.)
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COMING SOON
Teaching Math Online vs. In Person: What Actually Works
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How I Got 16 Million Views Teaching Math (Without Being a Celebrity)
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The Truth About Flipped Classroom Research: What the Studies Actually Say
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How to Set Up Your First Teaching Video in One Day (No Fancy Gear Needed)
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What Is a Flipped Classroom? A Real Teacher's Answer (Not a Textbook's)
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Why Filipino Educators Are Quietly Leading the Global EdTech Movement
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