The typical recommendations wanted are two from teachers and one from counselor. Some colleges may requires specific subjects. For example, MIT prefers one from a math or science teacher and one from a humanities (e.g. English, foreign language) or social studies (e.g. history, government, geography, economics) teacher. Cornell engineering wants a math teacher recommendation from a precalculus or calculus teacher in 11th or 12th grade, plus one other teacher recommendation.
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