Those who applied for COSMOS or are applying, did you opt to send both STEM recommendations? Were both from current school teachers or was the second from another mentor / tutor?
My first recommendation is from my AP Calculus BC teacher.
From what I heard during info session, both letters from STEM teachers will be the best. If not, at least one is from a STEM teacher. Rec letters from tutor/mentor outside school are not good. They want someone who really knows you in a classroom setting.
Hi Pickle5- thanks for responding back. This is very helpful.