Difference between symbol and blackboard in Korean
기호·칠판
기호symbol
A symbol (기호) is a mark or picture that stands for something. At school, you often see this word when you learn math symbols, map symbols, or signs in books. We use it for things like +, ★, or a restroom sign.
칠판blackboard
A blackboard (칠판) is a dark board that people write on with chalk. You usually see it in a classroom at school. We use this word when talking about lessons, teachers, and things written for students to read.
The difference
A 기호 is a sign or mark, like +, %, or ♡. A 칠판 is the place where a teacher may write those symbols for students to see.