Rising 9th graders heading into Honors Precalculus, current Honors Precalc students who want a stronger foundation, or homeschoolers needing a structured precalc curriculum. The pace assumes Algebra 1 and basic geometry.

Both are mostly video — and Khan especially is a great free supplement. What they don't ship is the rest of a course: worksheets with full answer keys, end-of-chapter tests, quick-check quizzes, a printable formula card per chapter, a chapter-organized glossary, and a common-mistakes reference. If you've watched a free math video and then thought “OK but where do I practice this?” — that's the gap this fills. The videos here also use custom Manim animations instead of whiteboard screencasts.

12 months from the day you purchase. That covers the full school year plus summer review on either side.

Around 30–40 hours total if you watch all videos and work through the worksheets. At 1 session per day, that's about 5–6 weeks. Self-paced — go faster or slower.

Recommended but not required. The TI-84 Primer (3 free sessions) gets you up to speed if you have one.

No — this is a self-paced video course. The tradeoff: it costs $99 instead of $1,000+ for tutoring. Worksheets have full answer keys so you can self-check.

Yes — full refund within 3 days of purchase, no questions asked. Chapter 1 is on YouTube as a free preview, so you can verify the teaching style before paying.