USA school system
before graduating, earning a diploma that makes them eligible for admission to higher
educationhigher education. Education is only mandatory until age 16, however. There
are generally five years of primary (elementary) school, during which students
customarily advance together from one grade to the next as a single cohort or "class",
three years of middle school, which may have cohorts, and four years of high school.
There is some variability in the arrangement of grades.
In the U.S., ordinal numbersordinal numbers (e.g., first gradefirst grade) are used for
identifying grades. Typical ages and grade groupings in contemporary, public and private schools
may be found through the U.S. Department of Education. Generally there are elementary school (K-
5), middle school (6-8) and high school (9-12). Many different variations exist across the country.
Estonian school system
The Estonian educational system does not differentiate between primary and lower
secondary education.
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