教材

1. Origins, structure, and basic meaning

• Structure: 教材, read きょうざい, denotes material used for teaching or learning.
• Basic usage: In 先生は動画を教材として授業に取り入れた。, the teacher incorporated a video into the lesson as teaching material.

2. Common pitfalls and similar expressions

• Materials beyond books
  • A video can be teaching material, as in 動画を教材として. 教材として identifies its role as learning material.