Gabriel Muya Ndung'u is a seasoned Biology and Chemistry educator with over 9 years of senior secondary and teacher‑training experience, specializing in grades 9‑12 and intermediate levels. He holds a B.Ed. in Science (Biology & Chemistry) from Kenyatta University and has progressed from department head positions to a college tutor role at Galana Teachers Training College, delivering onsite instruction and mentoring trainee teachers. Although new to the platform with no published reviews, his proven record of improving national exam pass rates, designing STEM curricula, and fostering critical thinking has established a reputation for data‑driven, student‑centered teaching and strong academic leadership.