The U.S. Department of Education divides its statistics between pre-kindergarten through eighth grade (grouping those as “elementary school”) and ninth grade through 12th grade (grouping those as “secondary school”). However, most school districts consider kindergarten through fifth or sixth grade to be elementary school and most educational literature and teaching strategies define elementary education within that same K–6 range. In other words, while the statistics for elementary education include middle school, those in the profession use a more selective categorization.