StateMinimum amount of instructional times per school year (by grade, if applicable)Minimum number of hours per school day In days Indiana180Grades 1-6=5.0; grades 7-12=6.0 Iowa180Grades 1-12=6.0 per day or 30.0 per week (excludes lunch, includes passing periods) KansasGrades kindergarten-11=186; grade 12=1815.0 48 more rows