宿題

1. Origins, structure, and basic meaning

• Structure: 宿題 is read しゅくだい and means homework assigned to be completed outside class.
• Basic usage: It is used for doing math homework and for leaving a homework notebook at school.

2. Common pitfalls and similar expressions

• Doing homework
  • 宿題をしました is a polite past expression for doing homework.
• Homework notebook
  • 宿題のノート refers to a notebook used for homework.