A. Local school boards shall provide (i) a minimum of 680 hours of instructional time to students in elementary school, except for students in half-day kindergarten, in the four academic disciplines of English, mathematics, science, and history and social science and (ii) a minimum of 375 hours of instructional time to students in half-day kindergarten in the four academic disciplines of English, mathematics, science, and history and social science.
B. Local school boards may include and the Board of Education shall accept, for elementary school, unstructured recreational time that is intended to develop teamwork, social skills, and overall physical fitness in any calculation of total instructional time or teaching hours, provided that such unstructured recreational time does not exceed 15 percent of total instructional time or teaching hours.