EPGY Open Enrollment recommends three twenty-minute sessions a week. DD prefers the 60 minute setting and averages 30-40 minutes a session. She does it when she has time as we just use it to supplement. Once she finishes algebra there, we'll move onto Art of Problem Solving for more depth. Dbat's assessment is right on. EPGY is great for laying out the basic skills through pre-algebra, but you'll want more depth. EPGY lays out content and provides exercises for a solid grounding in the basics while AoPS offers interesting problems.
