How do you get to be valedictorian?

Study, work hard, and persevere. To graduate first in your class you must have a higher grade point average than the rest of your class. You need to commit yourself to your education and studies. You...

Student with the highest academic rank, according to GPA, who delivers a high school graduation speech.

you must study very hard get great marks be kind and friendly to one and all, these are a must for a great valedictorian

Salutatorian.

No.(Not unless that 'junior' is graduating early, in which case they'd actually be termed a senior, even if this is only their third year of high school... so, still, no.)