Questions & Answers about המורה דורשת שנכתוב את התשובה במחברת.
Because the verb agrees with המורה. In Hebrew, מורה can mean either male teacher or female teacher, but the verb tells you the gender here.
- דורש = masculine singular
- דורשת = feminine singular
So this sentence specifically means that the teacher is female.
דורשת comes from the root ד-ר-ש and means demands, requires, or insists on. In this sentence, it means the teacher is requiring something to be done.
It is the feminine singular present-tense form, but Hebrew present forms are often used in ways that English would translate with present simple, like demands or requires.