elementary course; primary department
Refers to the introductory or elementary division of a school or course of study, often in contrast with 中等科 (intermediate) and 高等科 (advanced).
She started learning piano in the elementary course.
この学校には初等科、中等科、高等科がある。
This school has elementary, intermediate, and advanced departments.
Compound of 初等 (elementary, primary) and 科 (department, course).