Welcome to Clifford's Classroom

My name is Clifford Campbell, and I am a Mathematics and Physics teacher in El Paso, Texas. I am National Board Certified and have been teaching for over 16 years. I earned my Bachelor's degree in Mathematics and my Master's degree in Physics and Mathematics from the University of Texas at El Paso.

I created Clifford's Classroom to provide students, teachers, and parents with easy access to high-quality instructional materials. My teaching philosophy is simple: students learn best through clear, day-by-day lessons that allow them to review concepts, practice skills, and learn at their own pace.

To support that philosophy, each course is organized into daily lessons that include:

Instructional videos

Practice worksheets

Complete solutions and answer keys

My goal is to build a library of resources that students can use both inside and outside the classroom. Whether you are reviewing a concept, catching up after an absence, or preparing for an exam, these materials are designed to help you learn independently and confidently.

I will continue expanding the website over time as I upload additional courses and materials. I will begin with the TSIA2 Math Review and then focus on High School Physics. Unfortuenly, I do lock my lessons to only teachers and students in my school district. If you would like access please email me. Future courses will include:

AP Physics C: Mechanics

AP Calculus AB

Introductory College Astronomy

If you are interested in any of these courses or have questions about the materials, please feel free to contact me at:

cacampbell25@gmail.com

Thank you for visiting Clifford's Classroom, and I hope these resources help you achieve your academic goals.