Due giovani studenti maschi e femmine che scrivono sulla lavagna bianca durante una lezione di matematica. - Foto e immagini 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.

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

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

Group of young students doing technical vocational practice with teacher in the electronic classroom, Education and technology concept

Startup business, young creative professionals people team discussing on meeting at bright office while pointing on dual monitor screen computer for suggestions and help in project. 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

Technology students group in computer lab school classroom working on

Startup business, young creative professionals people team discussing on meeting at bright office while pointing on dual monitor screen computer for suggestions and help in project. High quality photo

Startup business, young creative professionals people team discussing on meeting at bright office while pointing on dual monitor screen computer for suggestions and help in project. High quality photo