fifth-grade
UK: fɪfθ ɡreɪd | US: fɪfθ ɡreɪd
adj. relating to the fifth year of primary education in the U.S. school system
n. (hyphenated) a student in the fifth year of primary education
The term combines "fifth," derived from Old English "fīfta" (related to the number five), and "grade," from Latin "gradus" (meaning "step" or "degree"). In U.S. education, "grade" refers to a year of schooling, and "fifth-grade" specifically denotes the fifth year of primary education. The hyphenation clarifies it as a compound adjective or noun.
She teaches a fifth-grade class at the local elementary school.
My son is excited to start fifth-grade this fall.
The fifth-grade curriculum includes basic algebra and American history.
The school organized a field trip for all fifth-grade students.
Her fifth-grade teacher inspired her love of science.