学齢

1. Origins, structure, and basic meaning

• Structure: 学齢(がくれい) is a noun for school age or the age at which schooling begins.
• Basic usage: It appears in administrative contexts such as enrollment notices or 学齢人口, the population in the school-age range.

2. Common pitfalls and similar expressions

• How it differs from 学年
  • 学年(がくねん) identifies a school grade or year. 学齢に達する means reaching school age rather than moving up a grade.
• An age group and enrollment figures
  • 学齢人口 refers to the population of the relevant age. It uses a different counting criterion from the number actually enrolled in school.