Enseignant parlant près de formules mathématiques sur tableau et appareil photo numérique en classe - Photo & image de stock

Teacher talking near digital camera and chalkboard with math formulas in class

Teacher holding chalk and talking near chalkboard with formulas and digital camera

Low angle view of teacher talking near math formulas on chalkboard and digital camera in school

Teacher holding chalk near blurred digital camera and chalkboard in class

Tutor pointing at chalkboard and holding digital tablet near camera in school

Teacher gesturing near chalkboard with math formulas and digital camera in classroom

Digital camera near blurred teacher in classroom

Cheerful teacher holding chalk near chalkboard and digital camera in classroom

Teacher writing math formula on chalkboard near digital camera in class

Selective focus of digital camera near businessman pointing with hands at computer monitors during online streaming on blurred background

Shocked geometry teacher touching face and pointing with finger at chalkboard with illustration

Selective focus of digital camera shooting businessman and journalist

Selective focus of digital camera shooting journalist and businessman

Selective focus of digital camera shooting businessman and journalist

Selective focus of digital camera shooting journalist in office