Teacher-Scholar Institute
"Propagating Matters Mathematical"
  See our new concise trigonometry book here.
Services we Offer
Teaching Philosophy
Summary of Qualifications
Dr. deLaubenfels' Résumé
Introductory Lectures
Exposition, College Level
Exposition, High-School Level
How much will all this cost?
How to Contact Us

Ralph deLaubenfels and Karen deLaubenfels formed Teacher-Scholar Institute in 2009. The designation "teacher-scholar" reflects the belief that teaching and research (in the subject matter being taught - not "education research") are symbiotic. This is particularly true in mathematics, since the primary purpose of mathematics research is expository: clarification, unification, and simplification.

Dr. Ralph deLaubenfels is a recently retired mathematics professor and statistics instructor offering miniature courses, individual instruction, and workshops in introductory statistics and all levels of mathematics.

Mrs. Karen deLaubenfels holds a B.A. in applied mathematics and is a Certified Public Accountant (Retired), offering miniature courses, individual instruction, and workshops in small-business topics, including accounting and taxation.

Dr. and Mrs. deLaubenfels have home-schooled their three children K-12.

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