Daniel Brink

I have a Ph.D. in Mathematics Education from the University of Georgia, USA. I have been a Middle and High School Mathematics teacher, Head of Department, Deputy Principal and Principal in schools in South Africa, Namibia and the USA for 22 years.

Free Practice SAT is the free SAT math diagnostic that pinpoints your exact weak skills. I also built 30 Day SAT Math Plan, a day-by-day SAT math plan built from your own diagnostic, and 30 Day PSAT Math Plan, a 30-day PSAT math plan for 9th and 10th graders.

My strength as a mathematics teacher is to break complex topics down to their root building blocks. I do that effectively in the classes I teach, in the encryption course I teach on Udemy, and on this SAT practice website.

My Udemy course has sold 290 times and has a 4.7-star rating, the highest of any encryption course. My TPT store focuses on connecting real-life mathematics to the math we do in classrooms, and it has a 4.9 rating.

I have been training mathematics teachers, organizing, attending and speaking at mathematics conferences for 17 years.

My doctoral research was on Mathematical Knowledge for Teaching: the knowledge a teacher needs beyond knowing the math itself. I wrote about what that means for parents in Does Your SAT Tutor Have Mathematical Knowledge for Teaching?

I founded a professional society for teachers in South Africa called the School Support Center, as well as an online school called the Cloud School. The SSC currently has more than 6,000 members, and the Cloud School has more than 117,000 registered students. I love all mathematics, but especially Number Theory, for its power, but also its accessibility to all people.

I am a family man, husband to Lise, a physical therapist and stay-at-home mom, and father to three children: Mieke (23), Johann (19) and Daniel (11). I love sports, especially rugby, which I played and coached for 19 years. I do road and trail running and have completed 6 marathons, 4 multi-day stage races and one ultramarathon.