Explanation of formulae
Mature teacher with open manual book explaining his students algebraic formulae
Size: 5760px × 3840px
Photo credit: © Dmitriy Shironosov / Alamy / Afripics
License: Royalty Free
Model Released: Yes
Keywords: --school, aged, algebra, attendant, audience, blackboard, book, caucasian, classmate, classroom, college, education, equation, experienced, explaining, formula, girl, grey-hair, group, groupmate, guy, high-school, knowledge, learner, lecture, lesson, man, mature, open, people, profession, school, schoolwork, senior, student, study, teacher, teenager, theorem, trigonometry, university
