She is a brave and strong survivor of breast cancer, I am glad she is my teacher. She is smart, energetic, and charismatic. She lights up the whole classroom with joy, she is one of my top favorite teachers in this school. She teaches science very well, and I have a B in her class. Mrs. Castellon is very amazing, beautiful, and funny which is why she's one of my top favorite teachers. -sincerely Aleah Sparks.