A number of parents have asked how to pace of the class over the course of a school year. In a home schooling environment the schedule can, and probably should, be more flexible than in a standard classroom. The ultimate basis for setting the pace is the level of understanding of the student. Keep in mind that some schools offer Algebra I as either a 1-year or a 2-year course, depending on the ability and readiness of the student. Mathematics textbooks are generally structured on the assumption of covering one section per day, with extra days for testing, review, and re-teaching of the more difficult topics. If you cover it over two years you could, of course, double the time spent per section, but you might find some sections go quickly, and more time could be allocated for review. The table below should help.
If you typically cover 1 section per day you would have 58 extra days in a 185 day school year. I would recommend spending 2-3 days for the final word-problem section of each chapter. If you use 3 days for each of those sections, you would still have 30 extra days to distribute as needed without eating into weekends or the typical holidays. (Problem assignments list I use in my classes. Each problem set typically represents one day's work. Use this as a guideline only.)
I highly recommend that parents be closely involved with the students' progress. The surest way to get behind is to allow the student to "slip through" the material without demonstrating that they understand it thoroughly. When this happens early in the course, you will find them unprepared for the work later in the course or in later courses. If they display difficulty in basic arithmetic along the way, set aside a block of time for arithmetic review.
For testing, you could use the Chapter Review and Test sections found at the end of each chapter, or you could pick a selection of easier and harder problems from each section of the chapter. You should always insist that all the work be shown on the same page as the answers. If your students say they can do the problems in their head, ask them to show you on paper what is going on in their head. If they insist that it is a one-step mental problem, have them explain their reasoning to you. I recommend treating this as a practical rather than a moral issue, although you will have to find your own balance on that question.
If you, as a parent, are rusty on Algebra, or perhaps never took it or never understood it the first time around, the ideal situation would be to take this as an opportunity to go back and be a student along with your child. (I recognize that real life tends to get in the way of the ideal situation.) Adults typically approach learning with more maturity than a child. You can be a role model of the learning process, even if it comes hard for you. If your child has to explain things to you, all the better. A little humility is good for the soul, and having to explain the material to each other will deepen the understanding for both of you.