Contact Information

Please feel free to call or write to me at the following:

Dr Numsen -- Doug Ray
P.O. Box 312578
New Braunfels, Texas 78131
Phone: 512.797.2158
Email: doug AT
The best way to reach me is via email. In addition to providing all of these materials, I also teach at Texas State University. At the university, I teach a variety of courses, including algebra, pre-calculus, and the core business mathematics courses. Lately I have been employing the Flipped Classroom method in my courses. I continue to explore ways of using technology in my classes, including Geogebra, Desmos, and my own custom-built student response system ("clicker") called Quizzer. Additionally at Texas State, I mentor new lecturers in our department, provide support for all faculty in terms of class resources and syllabus updates.

I also work with Private Schools Interscholastic Association by writing the Number Sense, Calculator Apps, Mathematics, Dictionary, Spelling, and Maps, Graphs, and Charts tests. Also, I wrote, maintain, and support the Academic Meet Companion, the program used for everything from registering contestants for academic competitions through to awarding the points after the contest.