Learn Math.
Teach Online.
Bend the Future of Education.
🇵🇭 Available in English & Filipino (Tagalog) · Free for every learner, everywhere → For Filipino Students
The only place to learn real college math in English and Filipino — taught from an actual classroom, with a free worksheet for every lesson. Built for students who want to get good at math, and for educators bringing the flipped classroom and the Teach It Like You Stream It movement to life.
Join educators getting free math resources every week — no spam, just math.
Two clear pathways. One education movement.
Numberbender helps students learn math with confidence and helps educators teach online with energy, clarity, and impact.
For Students
Access clear, curriculum-based math lessons designed to help you understand concepts, practice with confidence, and prepare for success in algebra, statistics, calculus, and beyond.
- Video-based math lessons
- Step-by-step explanations
- Practice-focused learning
- Confidence-building support
For Teachers & Educators
Learn how to teach online with energy, presence, and impact using simple video production tools, AI-enhanced workflows, flipped learning, and practical engagement strategies.
- Teach It Like You Stream It workshops
- Online teaching presence
- Video lesson creation
- AI & educational technology integration
Real classroom. Real students. Real math.
Dr. E recorded his actual college algebra courses — 14 weeks each, full sessions, real students in the room. The most authentic math learning experience available online.
Elementary Algebra
The foundational semester-length course for students starting their algebra journey. Filmed in Dr. E's real college classroom with real students.
- Real Numbers, Variables & Linear Equations
- Graphing, Slope & Systems of Equations
- Exponents, Polynomials & Factoring
- 14 weeks · ~60–75 min per session
Intermediate Algebra
Pick up where Elementary Algebra ends. The topics every STEM student needs — quadratics, rational expressions, exponential & logarithmic functions.
- Advanced Factoring & Rational Expressions
- Quadratic Equations & Functions
- Exponential & Logarithmic Functions
- 14 weeks · ~60–75 min per session
Statistics and Calculus courses coming 2027 — join the list to be notified.
Explore All Subjects →482 free math worksheets — every one paired with a video lesson.
Print-ready PDF practice sheets for Algebra through Calculus, lesson-ordered and packaged with a full answer key. No subscription, no paywall, no signup — just download and assign. It's the practice library other worksheet sites charge for, built free for every classroom.
Built for the flipped classroom.
Designed for global reach.
Dr. E pioneered flipped classroom math at the community college level — students watch the lesson before class, then use class time for deeper problem-solving. That same asynchronous model now reaches learners in 10+ countries who've never set foot in his classroom.
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Watch at home, practice in class
Every video is designed to replace lecture time — concise, complete, and ready to assign before the next session.
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Bilingual for Filipino STEM students worldwide
Lessons in English and Filipino (Tagalog) — built for students in the Philippines, UAE, Canada, and every corner of the Filipino diaspora.
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Asynchronous by design
Pause, rewind, replay at 2AM before an exam — the flexibility traditional lecture never gave students.
Math education should be clear, human, and accessible.
Numberbender was created to make math less intimidating for students and to help educators bring more personality, clarity, and connection into online learning. Whether you are learning math or teaching it, this platform gives you tools to grow.
Three ways Numberbender supports your growth
From self-paced math courses to faculty development — built for real students and real educators.
Math Courses for Students
Curriculum-aligned lessons in algebra, statistics, calculus, and more — taught with clarity, examples, and practice that builds real confidence.
Browse courses →Teach It Like You Stream It
A creator-style training program for educators who want to bring energy, presence, and modern video production into their online classrooms.
Join the movement →Speaking, Workshops & PD
Keynotes, faculty development sessions, and conference workshops on flipped learning, AI in education, and online engagement strategies.
Book Dr. E →
Dr. Peter Esperanza — Math Professor & Online Educator
Dr. E is a community college math professor, published researcher, online educator, content creator, and conference presenter. He founded Numberbender on a simple belief: that democratizing education means making great math instruction free, accessible, and available to anyone — student or teacher, anywhere in the world.
Through social media, he has reached hundreds of thousands of learners and shared best practices in online teaching, flipped learning, AI integration, and educational technology.
Learn more about Dr. E →Dr. E in action
A peek inside the home workstation where math meets streaming energy.
Trusted by students, educators, and institutions
Numberbender's reach spans social platforms, college campuses, and conference stages.
I transferred to Barstow High as a new student, and Dr. E's videos rebuilt my confidence in math. Then he had me create AP Calculus and AP Statistics videos of my own — I got to learn math twice, and scored a 5 on both AP exams. That's an experience I'll cherish forever.
I was hesitant to record my first video — it always felt awkward and I cringed watching myself back. Dr. E told me to focus on the students in my classroom and ignore the noise of who else might watch, and that one shift unlocked it. I found a skill I never thought I could do.
Ready to bend the future of education?
Whether you're learning math or teaching it, there's a place for you here. Pick your path and let's get started.
Three ways to bring Dr. E in
Workshops, keynotes, and ongoing PD — pick the format that fits your audience and goals.
Workshops
2–4 hour interactive sessions for teacher teams and faculty cohorts. Participants leave with something they recorded or planned during the session.
Workshop details →Keynotes & Speaking
30–60 minute talks for conferences, district kickoffs, and college all-faculty events. The opening session that sets the tone for the whole event.
Keynote details →Ongoing PD
4–8 sessions across a semester or year — coaching, deliverables, and ongoing access. Best for institutions ready to invest in sustained change.
Faculty development details →