by StaceyKoprince Thu Sep 18, 2008 4:54 pm
Generally, I would do a loop that consists of a chapter, the in-action problems at the end of that chapter, and then some of the related OG questions, before moving on to another chapter. Then, when you finish that book, do a set consisting of OG problems from all chapters (but still save some so that, later on, you can do mixed sets of questions from across all of the books).
OG does, in fact, have a full range of difficulties in its questions, including 700+. There just aren't as many as some people would like to see because, of course, if you are scoring in that range, then most of your questions will be up there and the lower level OG questions won't be as useful to you. GMATPrep and GMAT Focus (quant only) are also good sources of additional questions.
I've never heard of EZ Solutions, so I can't comment on that.
When reviewing, don't just review the ones you got wrong. Review the ones you got right, too. Did you get them right for the right reason? Or did you get a little lucky? Even if you did get it right for the right reason, there may be a better way to do the problem than the way you first did it. (This is true in a surprising number of cases!) Also, it's easier to look for shortcuts, spot traps, and learn how to make educated guesses on problems you got right, because you actually understand how they work. Then you apply those lessons to harder problems of the same type or content area.
Stacey Koprince
Instructor
Director, Content & Curriculum
ManhattanPrep