What were medieval teachers called?

Answer 1

There weren't schools or teachers in the middle ages. So, they weren't called anything. About 90% of the population couldn't read or write.

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There were schools and teachers in the Middle Ages. Most education was conducted by Monks, Priests and in some cases the Bishop. The Church pretty much controlled education.

The first Universities were being formed all across Europe and England.

The University of Bologna was founded in 1088, Oxford founded 1096 but not officially recognized until 1157. Dozens of Universities were founded during the Middle Ages.

During this time there was a struggle to have non-religious teachers in the schools. Generally the teachers were called Masters.