Teacher's pet

[1][2][3] They can be viewed unsympathetically by other students due to jealousy or envy in certain situations.

The phenomenon is extensively acknowledged by the public, but actual research on the topic is very limited.

[4] Various cognitive biases may influence a teacher's judgment of their students, such as gender, ethnicity, physical appearance, and other characteristics.

[4] This article relating to education is a stub.

You can help Wikipedia by expanding it.This slang article is a stub.

An illustration from a Spanish showing a teacher rewarding a student who gives in his homework.
A Spanish broadside from 1864 shows how "the teacher tenderly rewards [the good student's] good writing."