Elementary schools in the United States - Wikipedia
https://en.wikipedia.org/wiki/Elementary_schools_in_the_United_States
OverviewHistoryCurriculumTeachingCOVID-19 impact on learningGovernanceSee alsoOriginally, elementary school was synonymous with primary education, taking children from kindergarten through grade 8; and secondary school was entirely coextensive with the high school grades 9–12. This system was the norm in the United States until the years following World War I, because most children in most parts of what was then the mostly rural United States could go no further than G…
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