Deux jeunes étudiants hommes et femmes écrivant sur le tableau blanc lors d'un cours de mathématiques. - Photo & image de stock

Two young male and female students writing on the white chalkboard during a math class.

Two young male and female students writing on the white chalkboard during a math class.

Two young male and female students writing on the white chalkboard during a math class.

Two young male and female students writing on the white chalkboard during a math class.

Two young male and female students writing on the white chalkboard during a math class.

Two young male and female students writing on the white chalkboard during a math class.

Young female student standing and writing on white chalkboard in a classroom

Young female student standing and writing on white chalkboard in a classroom

Within the heavy industry, a factory industrial engineer measures with a caliper and on a personal computer Designs a 3D model. High quality photo

Within the heavy industry, a factory industrial engineer measures with a caliper and on a personal computer Designs a 3D model. High quality photo

Young female student standing and writing on white chalkboard in a classroom

Portrait of a young beautiful female student standing in front of white chalkboard and looking at the camera

Within the heavy industry, a factory industrial engineer measures with a caliper and on a personal computer Designs a 3D model. High quality photo

Young female student standing and writing on white chalkboard in a classroom