With 15+ years of experience in NYC schools as a math teacher & educational leader, Ms. Kero combines deep expertise with a proven record of success. Through high-impact tutoring, middle school math resources, professional development, and instructional coaching, Courtside Math provides practical, personalized support designed to drive meaningful results.
Expert math tutoring and engaging pre-algebra & algebra flashcards to build confidence and drive results - with a 99% Algebra 1 Regents pass rate
Standards-based resources, hands-on flashcards, and instructional videos designed to increase engagement & support differentiation
Expert instructional coaching, professional learning, and schoolwide instructional support tailored to your school's needs
NYC's best athlete
recognizes
NYC's
best math teacher!
Meet the founder
Courtside Math is a certified Women’s Business Enterprise (WBE) in New York State created by Marija Kero. Marija holds a Master's degree in Mathematics & Adolescent Education and a NYS Professional Certificate for Mathematics 7 - 12. She has over 15 years of experience in the NYC school system, raising standardized exam scores and bringing joy to math classrooms. In addition to her experience as an Algebra teacher, Marija has also held the title of Math Coach, Director of Curriculum & Instruction, and Assistant Principal. She has received several accolades during her time as an educator, including the Blackboard Award for Excellence in Education and the Bronx Educational Leadership Award. Ms.Kero is committed to helping teachers provide a high quality education and standards-aligned, thoughtfully-designed educational resources to students.
