Teach him then

I am sorry to hgear that, but you will do good, thats alot of teachers

get outside help w tutoring so as to get a decent grade from the ole boy,, aim years ahead to the job that will pay the best money, in house education is slowwwly going away due to online courses in almost everything less expense a lot less,,more convenience,do a review somewhere the prof gets evaluated,

Get an on-campus tutor and see your professor during their office hour.

Sometimes they require an appointment, other times you just show up.

You can go to office hours and ask for help, join or create a study group of students in your class, or hire a tutor.  You also have online resources like Khan Academy. 

So let's see if "he can't teach." If very few of your classmates get a passing grade in your "upcoming test," then clearly he can't teach. But if the vast majority get a passing grade, then clearly he can teach (or the unlikely case that your classmates are really good at self-teaching).

As OldProf and adjunct faculty in multiple universities, my experience is that there will always be a few students in my class who just never get it...whatever it might be. And when I get them one on one to assess what the issue is it boils down to the fact that these students never really learned how to study and take notes.

The most prevalent and worst causes for failure to learn the material and bad grades were two: lousy note taking and failure to recognize what the prof thought was important.

Briefly...they are "notes" not transcripts. They are brief notes to yourself to joggle your memory later when you go over those notes while doing your homework.

The good student listens carefully to what the prof is saying and watches carefully what they are putting up on the white board. The good student is not...not...writing down every thing they hear because that means they are missing what the prof is saying while they write.

Few people can actually write and listen attentively at the same time. Jot down notes when it's clear you won't remember what was said, like maybe a long equation or some numeric value. Don't try to write everything the prof says.

Listen attentively and critically. It's called active listening. As the prof talks make an effort to figure out what of everything they say the prof deems the most important. Those are the things you'll read about come the next test. If during the lecture you realize you didn't understand a word they said, hold up your hand and ask a question.

You'll recognize the important things as those will be repeated during the lecture. Sometimes they'll emphasize something important by going to the whiteboard and writing keys words, equations, or even drawing a picture or two. If the prof deems it important enough to put it on the white board it's important enough to ask in the next test.

I understand your frustration. I almost failed my freshman year in university because I never learned to study while in HS (I got As and Bs there without studying). So when I got to university I just about tanked because I really needed to study there, but had no clue how to do that.

Lest you misunderstand, I finally figured it out. By the time I was doing my MS and PhD my GPAs were each above 3.8 and I had learned how to study.

College math courses are quite different from high school ones.  You'll no longer be spoon-fed or led by the hand through every step of the problems.  I ran into this with my first college math course, which was "elementary calculus".  It was a whole other approach to mathematics, and the teacher understood it himself so thoroughly that he'd apparently forgotten how different from algebra it was.  I nearly crashed and burned until I bore down and learned the steps necessary to understand the problems.  Even so I barely squeaked through with a C.

Perhaps you could look into forming a study group with three or four other students.  Be sure to contribute, and pull your own weight, so you don't get left behind.

In general, in college, the responsibility for learning lies much, much more with the student than in high school, and moreso as you progress through college. Taking responsibility for your learning begs the following questions:

Do you have the proper foundational knowledge to BE in this class? Not “Did you take the prerequisite?”, but “Do you KNOW what you’re supposed to know coming in to this class?”

Have you raised your hand in class to ask questions, every time you have a question?

Have you formed a study partnership with a student who does better than you?

Have you gone to the library (or searched online) for alternative explanations and examples?

Have you visited your professor, more than once, DURING OFFICE HOURS to discuss your difficulties and ask for help?

You cannot sit back and expect to be taught... you have to actively PURSUE learning.

I majored in math in college (and I also taught freshman college math for two years), and that is the way that most math courses are taught.  The instructor will first review the class assignments and then discuss the next topic during the second part of the class hour.  He SHOULD be explaining what he is doing.

If he is not explaining the methodology, you should ask him to do so - AND you should visit him during office hours and express your concerns.

PS:  Nowadays, algebra is a high school subject, and what used to be called "college algebra" is usually taught for HS sophomores or juniors AND is required for admission to most decent colleges.  Are you taking a remedial non-credit course?

Then its your responsibility as a student to point this out to their superiour, but in a correct manner.