Core course of study refers to a series or selection of courses that all students are required to complete before they can move on to the next level in their education or earn a diploma. A core course of study will typically include specified classes in the four “core” subject areas, English language arts, math, science, and social studies. The general educational purpose of a core course of study is to ensure that all students take and complete courses that are considered to be academically and culturally essential.