If you are having difficultly on a particular topic:
Here are some sites that have instructional videos on Algebra 2 topics (also don't underestimate the scope of YouTube...):
Khan Academy - tons of video clips for every subject
WCNY Public Broadcast Station - Regents Review videos
eMath Instruction - has worksheets on Algebra 2 topics, along with instructional videos
If you want to do better on your graded assessments:
1) As you are doing homework assignments or reading your notes, make a comment, circle or put a ? by anything you don’t understand and ask about it in class or during extra help.
2) Take notes during class. After class, review your notes and rewrite them if necessary to fill in any missing details. If you don’t understand a concept, question your teacher about it during the next class or during extra help.
3) Remember that learning mathematics is a step-by-step process. Always keep up with and complete your assignments because you must understand each topic in order to learn the next one.
4) When you are working problems for homework assignments, show every step in your solution. Then, if you make an error, it will be easier for you or your teacher to find it. You may find it helps to write your own comments along the side of your work (i.e. hints, steps, or "remember to ... ").
5) Work the problems in the homework assignments as though you were practicing for a test. First try to do the problems with your notes closed.
6) Study with another student or small group of students, especially when preparing for a test.
7) On the day of an assessment, allow yourself enough time to get to the classroom early.
8) After you receive an assessment back with a grade, review/go over your tests carefully. Make sure you understand where and how you made errors. Most often there will also be written comments about your errors or unique solutions. Contact your teacher for help if needed.
9) If you are having a problem, be sure to take advantage of extra help. If needed, you may have to seek out an outside source for help (i.e. online resources, peer tutor, online tutoring, another math teacher, math tutor).
If you are studying for the Regents Exam:
1) Read over your notes from old chapters
2) Look at an old test & retry questions (especially ones you did incorrectly the first time)
3) Make a formula/cram sheet that lists things to memorize
4) Try Regents questions (be sure to check answers and try to correct the ones you did wrong)
5) Seek out help from knowledgeable sources (teacher, tutor, sibling, etc.)
6) See the links above to watch videos on topics you are having trouble with, or to see solution methods to problems you tried.
7) If you did not complete all the review materials in class, do so now.