page_title: Secondary education in the United States
hierarchical_section_title: Secondary education in the United States
caption_attribution_description: Calhan High School seniors in Colorado, USA.
context_page_description: Secondary education in the United States is the last seven years of statutory formal education grade 6 through grade 12. It occurs in two phases. The first is the ISCED lower secondary phase, a junior high school or middle school for students grade 6 through grade 8. The second is the ISCED upper secondary phase, the high school for students grade 9 through grade 12. There is some debate over the optimum age of transfer, and variation in some states.
context_section_description: Secondary education in the United States is the last seven years of statutory formal education grade 6 (age 11–12) through grade 12 (age  17–18). It occurs in two phases. The first is the ISCED lower secondary phase, a junior high school or middle school for students grade 6 (age 11–12) through grade 8 (age  13–14). The second is the ISCED upper secondary phase, the high school for students grade 9 (age  14–15) through grade 12 (age  17–18). There is some debate over the optimum age of transfer, and variation in some states.
caption: A high-school senior (twelfth grade) classrooms in Calhan, Colorado
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