Free math for your students.
Real PD for your faculty.
Numberbender is a 501(c)(3) nonprofit. Everything your students need is already free — no license fees, no LMS integration costs. And when your faculty are ready to level up, Dr. E delivers workshops and keynotes that actually stick.
Drop Numberbender into your LMS today
All materials are openly licensed under CC BY 4.0. Link directly to any video, embed any worksheet, or point students to the full course library — no fee, no permission required, no integration needed.
For California community colleges: every course maps to a C-ID code. For K-12 and international institutions: subjects are organized by topic and difficulty so students can self-navigate.
Three ways to bring Dr. E in
All engagements are tailored to your institution's goals, faculty, and context. Dr. E doesn't do canned presentations.
Conference Keynote
A 30–60 minute opening or closing session that reframes how teachers think about online instruction, student engagement, and the role of video in the classroom. Built around story, research, and practical takeaways — not slides full of bullets.
Delivered at SEAMEO QITEP, ACTLA, OTC, and K-12 district conferences.
See keynote topics →Hands-On Workshop
A 2–4 hour working session for teacher teams or faculty cohorts. Participants leave with something they actually made — a recorded lesson, a flipped unit plan, or a first draft of an online course module.
Designed for math departments, STEM faculties, and school-wide PD days.
See workshop formats →Semester Faculty Program
4–8 sessions spread across a semester or year — coaching, deliverables, and ongoing access to Dr. E and the full Numberbender resource library. Best for institutions ready to shift culture, not just check a PD box.
Includes curriculum review, LMS integration support, and a final showcase.
Inquire about pricing →From California classrooms to Southeast Asia
California Community Colleges
C-ID aligned OER for all 116 colleges. AB 1705 / AB 705 corequisite support. Keynotes and workshops for faculty under the CCCCO MEIA Academy and regional conferences (ACTLA, OTC).
K-12 Schools & Districts
Flipped classroom workshops for math departments, district-wide PD days, and all-faculty events. Dr. E started his career in K-12 (Barstow High School) and speaks both worlds fluently.
DepEd & Philippine Schools
Bilingual English-Filipino content for STEM subjects. Free worksheets and videos usable without internet access (downloadable PDFs). Consulting for schools adopting online and hybrid models.
SEAMEO & Regional Partners
Delivered sessions for SEAMEO QITEP in Mathematics in Indonesia (2025). Available for regional teacher training programs, Ministry of Education events, and Southeast Asian education conferences.
FAQ for administrators
Is the student content really free? What's the catch?
Yes, completely free. No trial period, no freemium tier. Numberbender Inc. is a 501(c)(3) nonprofit — the free access is part of the mission, not a marketing strategy. All videos are on YouTube (no login required) and all worksheets are downloadable PDFs. Institutions can link to or embed any content without a licensing agreement.
Can we integrate Numberbender content into Canvas, Blackboard, or another LMS?
Yes. All videos can be embedded via YouTube's standard embed code. Worksheet PDFs can be linked or uploaded directly into any LMS course. The CC BY 4.0 license explicitly allows this with attribution. No separate integration agreement is required.
Are the materials aligned to any standards?
For California community colleges: all transfer-level and developmental courses are aligned to the statewide C-ID standard. For K-12: algebra, statistics, and calculus content maps broadly to common course sequences. For the Philippines: content was designed alongside Filipino math curricula and bilingual instruction models.
Does Dr. E travel internationally for workshops or conferences?
Yes. Dr. E has presented at SEAMEO QITEP in Indonesia, the West Coast University PEC Conference, and other international events. Virtual sessions are also available. Contact us to discuss scheduling and logistics for international engagements.
How do we book a workshop or keynote?
Use the contact form below or email directly. Include your institution name, estimated audience size, preferred dates, and format (in-person / virtual / hybrid). Dr. E typically responds within 3–5 business days.
Is there a fee for workshops and keynotes?
Yes — professional development engagements are fee-based to support the nonprofit's operations. Free resources for students (videos, worksheets, course library) remain free. Contact us for a quote based on your institution's format and needs. Nonprofit and public school pricing is available.
Ready to bring Numberbender to your institution?
Whether you need a keynote speaker, a semester-long faculty program, or just want to know how to point your students to the free materials — we're here.