Our Instructors

Steve Sandweiss – Seattle, Bellevue, Tacoma

Steve Sandweiss has been helping students prepare for entrance exams for college, grad school, law school, and business school since 1991. For seven years he worked for Kaplan, the nation’s largest test prep organization. In 1998, he decided that he could offer better quality courses at more affordable prices to Seattle-area students, and formed Sandweiss Test Prep. He felt it was important to provide smaller class sizes and opportunities for individual attention for students to fully realize their test-taking potential.

Steve teaches the SAT, ACT, GMAT, GRE, ISEE, SSAT, and LSAT, as well as SAT Subject Tests in English Lit., World History and U.S. History and general school subjects including AP and IB courses in history, English and government/political science.  He also specializes in providing college application essay assistance.

Matt Schulz – Seattle, Bellevue

Matt Schulz graduated from the Iowa Writer’s Workshop with an MFA in Poetry and he holds a BA in English from the University of Washington. He has over eight years’ experience teaching test prep for a variety of tests including the SAT, the ACT, and the TOEFL, and has also taught undergraduate Literature and Composition courses at the University of Iowa. Additionally, during his two-year stay in graduate
school, he had the privilege of leading undergraduate creative writing studios through the Workshop. If he’s not teaching, you might find him on a tennis court or underneath a blanket, agonizing over a preposition.

Matt teaches SAT/ACT, SSAT/ISEE, AP Literature, and the SAT Literature Subject Test.

Darin Arbogast – Seattle, Bellevue

Darin has been conducting STEM classes and tutoring for the Seattle home-school community for the past 5 years. He enjoys the mental challenge of a good problem, and you’ll often see him indulging in logic games and puzzles. While teaching allows him to share this enjoyment, he finds collaborating with his students in refining the problem-solving process even more rewarding.

Until very recently, Darin was an aerospace engineer with numerous patents and technical publications on his resume. Prior to his time in industry, Darin served as an instructor and lecturer of Modern Physics and Electrical Engineering at Montana State University. He holds a MS in Physics from Montana State University and a BS in Physics from Southern Oregon University.

Aside from teaching, Darin played lead-guitar in a local band for several years in his 20’s. You can still find him on stage (and backstage) in several musical theater productions each year. He also has expertise in pre-industrial woodworking techniques, embedded systems, and robotics.

Darin teaches SAT, ACT, SSAT, ISEE, SAT Subject Tests in Math (1 & 2), Physics and Chemistry, and he also tutors all levels of high school math, including AP/IB courses in algebra, geometry, pre-calculus, Calculus AB and Calculus BC.

Nicole Hayes – Seattle, Bellevue

Nicole graduated from the University of Washington with a BSc. in Psychology with Interdepartmental Honors and a minor in Classics. In addition to teaching and tutoring at Sandweiss Test Prep, Nicole works in a dog daycare. She is currently applying to Masters programs in Animal Welfare and is hoping to one day be able use her skills developed working with humans and animals to train people how to live peacefully alongside animals – both domestic and wild – to the benefit of all. In her free time, she plays trumpet in a community band and enjoys writing fiction.

Nicole teaches all levels of SSAT/ISEE, ACT, SAT, AP Biology, and both SAT Biology Subject Tests (E/M).

Lukas Untersteiner – Seattle, Bellevue

Lukas Untersteiner graduated from the University of Washington with a B.S. in Speech & Hearing Sciences and a minor in Music.  He has been tutoring test prep and general high school math subjects for four years.  In addition to being a tutor, Lukas is a freelance audio engineer and music producer.  He has toured internationally with his band The Bilinda Butchers and his music has been featured on various commercials and TV shows.  When Lukas is not tutoring or working on music projects, you can find him working on his car, playing tennis, writing songs, playing video games, and bird watching.

Lukas teaches ACT, SAT, ISEE and SSAT, and he provides academic tutoring for most high school-level math courses.


Siva Kasinathan – Seattle

Siva graduated from Drake University in Des Moines, Iowa with degrees in Biochemistry, Cell, and Molecular Biology and Pharmaceutical Sciences and a minor in Mathematics. After completing two years of medical school, Siva is currently pursuing a PhD in Molecular and Cellular Biology as part of the dual-degree MD/PhD program at the University of Washington School of Medicine.

Siva teaches our MCAT courses as well as high school and college-level inorganic chemistry, organic chemistry, physics, biology and mathematics courses.  He also tutors SAT and ACT.

Valerie Morgan-Krick – Tacoma

Valerie Morgan-Krick is a tenured faculty member in the Tacoma Community College math department, where she has worked since 1995. Valerie specializes in teaching “developmental math,” primarily algebra-based classes below 100-level. She received her degree in Mathematics from Gonzaga University, where a strong liberal arts education provided the foundation for her ability in the English and Writing portions of the SAT. She has been working with Sandweiss Test Prep since the beginning of 2007.

Valerie teaches and tutors the ACT and the SAT