The Classroom

There are two rulers in my desk.

There is a map on the wall.

There is a teacher in the classroom.

There isn't a pen on my desk.

There isn't a notebook for the teacher (male).

Is there a chalk for the blackboard?

Is there an assignment for the students?

There are three maps for the teachers.

There is a backpack on the desk.

Is there a fish in the classroom?