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Source: National Center for Education Statistics

Note: Public Elementary and Secondary Schools. Average Class Size for departmentalized teachers instructing several classes of different students all or most of the day in one or more subjects (such as algebra, history, biology).

‡: Reporting standards not met. The coefficient of variation (CV) for this estimate is 50 percent or greater (i.e., the standard error is 50 percent or more of the estimate) or the response rate is below 50 percent.