Jang Teacher Mathematics (장선생수학) is a mathematics academy in Wolseong-dong, Daegu, serving elementary, middle and high school students. Its stated goal is to help students reach advanced levels through student-focused teaching, careful exam analysis and communication with families. The academy offers level-based instruction and school-specific preparation, with the director personally analyzing exams and school worksheets to identify learning priorities and opportunities to improve results.

For middle and high school exam preparation, students can use the academy’s original Re: workbook series alongside commercial practice books. Re:Mind covers foundations through practical questions, Re:Rise combines exam practice with advanced study, and Re:Spect targets school assessments and mock exams. High school students also have access to the Concept Build concept-review book and the 실전 Code workbook for school-exam preparation. The academy provides learning resources, study-planning support, consultations and placement testing; new students take a 50-minute diagnostic test before discussing their results and suitable next steps. Jang Teacher Mathematics reports five medical-school acceptances in 2024, alongside acceptances to other universities.