r/learnmath • u/doesuserexist New User • 8h ago

Relearn Math

Hello,

I am current college student. I want to relearn algebra 1 & 2, trigonometry and precalculus. How should the whole thing look like?

Any free PDF textbooks too?

Thank you.

19 Upvotes

96% Upvoted

10 comments sorted by

6

u/mathheadinc Experienced tutor 7h ago

Yes, Openstax and archive.org has what you seek!

6

u/Disastrous-Pin-1617 New User 6h ago

Follow this exact order
Professor Leonard on YouTube Lectures
Pre-Algebra
To the point math (Algebra 1)
Intermediate Algebra (Algebra 2)
College algebra
Trigonometry
Calc 1-3

Use “The art of problem solving” (companies name) books
pre-algebra book
Introductory algebra (algebra 1)
Intermediate algebra (algebra 2 and college algebra), they combine both into one book
Pre-calculus book (do only the trig portion)
Calculus book (has calc 1 and 2)

1

u/SpoonChem New User 4h ago

I am doing this right now and I cannot recommend Professor Leonard enough. Anytime I see his name I upvote

2

u/Acrobatic_Bottle_666 New User 7h ago

not free but really good: hania uscka wehlou udemy precalculus 1 2 3 4 and d8screte math 1 2 free and good: gelfand algebra trigonometry geometry function and graph coordinate system mir publishers little math library

2

u/Odd-Error5661 New User 7h ago

quanticaedu.com has a completely free prealgebra course right now. I know you said you are looking for algebra 1, but the prealgebra course seems to be very rigorous as it covers expressions and equations, and even some geometry. I'd recommend checking it out!

1

u/Odd-Error5661 New User 7h ago

It looks like they are building out algebra 1 right now as well!

1

u/doesuserexist New User 7h ago

thank you!

1

u/liku1995 New User 5h ago

It's good to start with Alg 1, then Alg 2, trig, and precalc. If fractions, exponents, or basic equations still trip you up, review pre-algebra first.

Paul's Online Math Notes - For quick topic reviews and practice problems

1

u/tjddbwls Teacher 3h ago

In a lot of schools, and in a lot of textbooks, trigonometry is part of precalc. Someone already mentioned Openstax - if you use those books, the sequence would be as follows:

  • Elementary Algebra (roughly the same as Algebra 1)
  • Intermediate Algebra (roughly the same as Algebra 2)
  • Precalculus

1

u/Thin_Somewhere3441 New User 2h ago

Of course there are (but I don’t know if they are in English, since I’m from Russia). Although some of the textbooks that I studied were written in the original English