• Welcome to R. Castillo's Math Class!

    Hello. My name is Mr. Castillo and I teach 8th grade math, and 8th grade Algebra I this year at E. T. Wrenn Middle School.
     This is my 5th year teaching at E.T. Wrenn Middle School. I earned my Bachelor of Science degree at     Texas A&M- Kingsville. I have taught different grade levels from 5th grade to 8th grade. I live in San Antonio with my beautiful wife and daughter. I enjoy the outdoors and love spending time with my family.