Free learning links
Videos & official sources
Use free video to unblock confusing topics — then return to your QBank. Official ETS pages are the source of truth for blueprints and scoring.
ALG/FUNC · channel
Professor Leonard — College Algebra / Precalculus
Professor Leonard
Clear full-length lectures for algebra and precalculus foundations.
FUNC · playlist
3Blue1Brown — Essence of calculus
3Blue1Brown
Visual intuition for derivatives and integrals — perfect for Praxis conceptual calculus.
GEO/STAT · channel
Organic Chemistry Tutor — Geometry & Stats playlists
The Organic Chemistry Tutor
Huge library of worked examples for geometry, probability, and stats.
Official · page
ETS Praxis Mathematics (5165) Study Companion
ETS
Authoritative topic list, sample questions, and teaching-task descriptions.
How to use videos without falling behind
- • Watch only the topic you just missed in MCQs.
- • Pause and do 5–10 related questions immediately after.
- • Prefer walkthroughs that show exam-style reasoning.
- • Keep the study method as the spine — videos are support, not the plan.