We have been getting a lot of questions this year about who can write the 3A and 3B recommendations. Well, I will tell you.
3A (English/social studies)
Okay: English, social studies, history, government, economics, art history, music theory, foreign literature, anthropology, psychology
Not okay: music performance, studio art, foreign language, speech and debate, journalism, business, marketing
3B (Math/science)
Okay: math, science with a lab, statistics, science without a lab, computer science
Not okay: psychology
In every case, these letters should be written by a teacher who taught you in that subject during high school, not in a college or university (unless you are home schooled and that is the only context in which you took that class).
And yes, both recommendations are a requirement!
If I'm missing any kinds of classes, let me know!