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How to get into yale 
Take ap or college prep courses if they are available. 
Challenge yourself with difficult college prep curriculum in high school. Because yale is an ivy league school, admissions officers look for students who have proven they can survive a heavy course load.
Achieving high grades in easy courses will likely not be enough to get you into yale, so load up on advanced placement and college prep courses to prove you stand out among your peers. If your high school offers unusual or unique courses not found in most high schools, take them.