chapter, lesson, section, department, division, counter for chapters (of a book)
課 centers on organized units of work or content: a chapter or lesson in a book, a department or division in an organization, and the counter for such sections.
課 combines 言 (words, speech) with 果, which likely contributes the sound and the idea of a result or outcome, suggesting a measured unit of spoken or written material.
Words (言) and fruit (果) together: imagine a tree of knowledge where each fruit is a chapter or lesson you must pick and study.
For カ, picture a car (カ) with each chapter of a manual stacked on the seat, ready to be read section by section.
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subject; theme; issue; matter
charging (a fee); billing; charge
lesson
section manager; section chief
after school (at the end of the day)
taxation
course; curriculum
to impose (a tax, fine, etc.); to levy; to assign (a task, duty, etc.); to give; to set
to impose (a tax, fine, etc.); to levy; to assign (a task, duty, etc.); to give; to set
daily routine; daily work; daily lesson
extracurricular
tax-exempt; tax-free; tax-exempted
levy; imposition
section staff
schoolwork; lessons
charging for in-game items; microtransaction
capital gains tax; capital gain taxation
flat tax; uniform taxation
Reserve Officers' Training Corps (US); ROTC
studying two lessons