African American girl in protective face mask writing on chalkboard and reciting math lesson to male teacher and classmates while studying in school during covid-19 pandemic
Female Math teacher wearing eyeglasses writing formula on blackboard and explaining it to students
Zoom in of female teacher explaining math formulas on chalkboard to diverse students during college lesson in classroom
Handheld close up shot of female math teacher circling information on chalkboard and writing X equals Question during lesson in school
Unrecognizable female Math teacher wearing mask and eyeglasses giving Math lesson during quarantine
Afro-American male student in protective mask explaining math formulas on chalkboard to classmates and teacher while studying in time of covid-19 outbreak
Asian Teacher Writing Teaching Math On Whiteboard In Classroom
College student writing on the chalkboard during a math class
Black male teacher in protective face mask standing by chalkboard in front of children in classroom, pointing at posters and explaining math lesson while working in school during covid-19 outbreak
Black male teacher in disposable face mask pointing at chalkboard and giving math lesson to students while working in school during covid-19 pandemic
Caucasian girl explaining math formulas on chalkboard to group of students and professor during university lesson
Female Math Teacher With Board Room With Board To Write Math Formulas. She Holds Pen In Her Hand And Points It At The Board. Teacher Explains The Math. Woman Is Recording Video Lesson.