During class last week, my teacher was teaching about metaphors, and as with every english class, we got a short assignment to complete for the following week. We were given a random piece of text and were asked to identify all the metaphors (if any) in the text. I came across this piece of text: "And most of his classmates thought of him as bizzare." The part "As bizzare" in the sense of, "tought of him as" being "bizzare". I would like to know if that text or any part of it is a metaphor. Thank you.
I don't think it's a metaphor at all.

an expression which describes a person or object in a literary way by referring to something that is considered to possess similar characteristics to the person or object you are trying to describe:
'The mind is an ocean' and 'the city is a jungle' are both metaphors.

Above is the definition from Cambridge.

To merely suggest someone is, or someone as being bazaar, or strong, or ugly, tall, etc. does not make it a metaphor.