Master DSE answering techniques • Have a large number of DSE and HKCEE practice papers. Teaching materials are customized according to students' needs, abilities, and weaknesses for targeted practice. All students achieve at least Level 3 in DSE Mathematics. Teach candidates to answer both papers starting from zero foundation. In addition, I have thoroughly studied all past papers since the establishment of the Hong Kong Examinations and Assessment Authority (from 1980 to 2025) in both Biology and Mathematics, and recorded commonly mistaken questions for explanation during tutoring. Unlike traditional tutors who usually only teach textbook knowledge, which often does not match the current DSE question formats, many students struggle during the exam. However, I am familiar with the DSE's emphasis on students' conceptual understanding across topics and their answering techniques, therefore I frequently provide test questions during tutoring for additional practice.