Author: Sean Alexander

Sean has been a professional educator for 15 years and has taught math, physics, and astronomy at all levels. His experience ranges from working at a high school for severe learning differences to teaching advanced physics at Stanford. After completing his graduate work in theoretical physics Sean founded Alexander Tutoring, with the mission of revealing the deep connections between math and nature to as many students as possible.

12th Grade Math Essentials: Pre-Calculus Skills for Calculus Readiness

Table of Contents It’s the final year of high school, and your child is already daydreaming about graduation day. They might have a college all picked out, or maybe they’re still exploring schools and majors. No matter which path they choose, there’s probably a math class in their future — or a dozen, if they…

11th Grade Math Essentials: What to Review Before Algebra 2

Table of Contents The transition to 11th grade math is a major turning point for students. It’s more than just harder questions and more complex equations — it’s a whole new way of thinking. High school juniors learn to solve and graph complex equations. They launch into advanced topics like trigonometry and logarithms. Almost every…

10th Grade Math Essentials: A Parent’s Guide to Geometry, Proofs, and Building Real Problem-Solving Skills

Table of Contents Sophomore year is a turning point in high school math. Kids who breezed through algebra suddenly have mixed feelings about the topic as a whole. It’s not universal, and it’s not because they can’t handle more advanced material. They can. The problem isn’t that the work is “harder.” It’s that the 10th-grade…

9th Grade Math Essentials: What Your Student Needs to Succeed in Algebra 1 (and Beyond)

Table of Contents For many incoming high school freshmen, Algebra 1 is the focus of the 9th-grade math curriculum. Some may have studied Pre-Algebra the year before, so the topic might not be so unfamiliar, but it can be a turning point for many, depending on the curriculum and topics that they studied in middle…