A great teaching tool for teaching algebraic concepts is called Hands-On Equations. I was trained in using this system in 1994 when I taught 6th grade math. Years later, I purchased my own system to help my stepdaughter who struggled with algebra. Then I used it for my son a couple of years ago when he was 9. We were just working on some math today and a word problem came up that was best solved using an algebraic equation. My son got a worried look on his face, and I decided to re-write the equation using the Hands-On Equations "pawns." He got it immediately. I suggest this system to ALL parents, whether they are homeschooling or not. You can start it as young as 3rd grade, and there is no upper age limit, so if you struggled with algebra yourself, it might help you re-learn (or learn) it. You can learn more about the system at the Hands-On Equations website. I was able to use just the Learning System for $34.95, but I did have previous training in it. You may or may not need to purchase more in order to really understand how to use the system. I would say that the worse you are in math, the more you may need to purchase. But, if you are determined, you should be able to use just the system I purchased. (The more broke we are, the more determined we must become!)
Also, if you do get the system and then have questions, they will answer them for you, and I will, too!