📚 Numberbender v2.0
Find Your Math
Whatever math you're facing right now — it's in here.
10
subjects
59
units
400+
lessons
2
full courses
📖 Subject Library
Browse by Math Subject
Dr. E's flipped classroom lesson library — pick a subject, pick a unit, and start learning. Every lesson available in English and Filipino 🇵🇭
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🎓 Full Courses
Semester-Length Classroom Recordings
Real students, real classroom, real math. Dr. E teaches full 15-week college courses — the same ones his students take every semester.
📚 15-Week Course
Elementary Algebra
Algebra for Future STEM Students
15
weeks
13
lessons
2
exams
Free
always
📚 15-Week Course
Intermediate Algebra
The Bridge to Precalculus & STEM
15
weeks
12
lessons
3
exams
Free
always
Coming 2027
📚 Full Course
Statistics
Data, probability, and inference
15
weeks
—
lessons
Free
always
Coming 2027
📚 Full Course
Calculus
Limits, derivatives, and integrals
15
weeks
—
lessons
Free
always