Tonja L.

I’m “Doc Lock,” a PhD math educator and practicing biostatistician who helps students unlock even the most challenging concepts in calculus and statistics. I have taught mathematics from middle school through college, including AP Calculus and AP Statistics, and I currently apply statistical methods in my work as a biostatistician. This combination of classroom experience and real-world practice allows me to explain not just how math works, but why it matters. My approach focuses on building…