A young man doing a complex calculation in front a screen board
A man is showing how to do a complex math problem on the screen.
A man writes equations on a clear screen with a white marker
A man is in front of a glass board and teching how to do math.
Wear a shirt entitled, "Assignment Expert" a young man is working out a mathematical problem on a board.
A man explains a problem as he uses a tool that allows what he writes to appear on the screen.
A young man, wearing a T-shirt that identifies him as an "assignment expert," illustrates a math problem.
A male instructor writes a complex mathematical formula on a clear board as he talks.
A man shows how to do a math problem while writing on a board.
A man with a branded black t-shirt performs mathematical operations on a screen.