The teacher explained the concept to the students.

Meaning: This means that the teacher made an idea or belief clear or understandable to the students.

Choice of Words: Teacher is a person whose job is to teach. Explained means to make something clear or understandable. Concept is an idea or belief. Students are people who are enrolled in a school or other educational institution. The sentence is saying that the person whose job is to teach made an idea or belief clear or understandable to the people who are enrolled in a school or other educational institution.

Alternative Expressions

Related Expressions