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<p>As far as “native” offerings go, vanishingly small, essentially only a few super-elite high schools. Dual enrollment courses may add a few more, but it would still be a small minority of high schools that offer such courses. Students elsewhere who complete BC junior year or earlier would have to juggle schedules between high school and local colleges to take additional math, or do so in the summer.</p>
<p>Back to more “normal” students – when I was in high school, the honors sections of various subjects were each assigned a different schedule period (e.g. honors math was always in period 2, honors English was always in period 3, etc.; AP was part of the honors sequence at the appropriate level) in order to minimize schedule conflicts for students taking honors (including AP) in any combination of subjects.</p>