How will this work out for a kid who will be through Alg I, Geometry, Alg II before going to High School?
Not sure. Common Core only defines what will happen through Algebra 2. What I would do is check with the High School they will be planing on attending about their plans are for pre-calculus & AP Calculus, and when they are implementing common core. They may not be able to give you an answer as it's still a work in progress in many areas. My local district implemented common core in junior high, and these changes will follow these students into H.S. In other words common core will only be implemented for freshman Algebra 1 next year.