NROC courses are organized into single semester downloads. Some of the courses are designed to be one semester in length (i.e., AP Environmental Science), others are two (i.e., AP US History). If there are two semesters, they will be titled appropriately; for example, "AP Biology I" and "AP Biology II". Some high schools have used our Foundations courses over a full year, although they are designed for a single semester of college work.
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