Thoughtful young girl in mathematics class standing sideways looking up at a blackboard covered in equations with her hand to her chin as she seeks an answer to a problem - Stock fotografie a obrázky

Clever young woman solving a mathematical problem standing with her back to the camera writing on a college blackboard

Kid student girl against school blackboard having good idea

Wise school girl looking at math formulas on chalkboard

Schoolgirl at the blackboard in math

Young teacher is standing near blackboard in classroom

Intelligent little girl child prodigy in class standing confidently in front of a blackboard covered in mathematical equations with her hands on her hips smiling at the camera

Intelligent young female maths student or teacher wearing glasses standing in front of a chalkboard with mathematical equations with folded arms and a piece of chalk in her hand

Clever confident female student in the classroom writing on a chalkboard completing mathematical equations

Young girl in school with her hair in pigtails standing with her back to the camera facing a blackboard with mathematical equations

Rear view of teenage girl writing on chalkboard in classroom

Pretty young female student leaning against the blackboard with chalk in her hands thinking about the answer to the mathematical equation on the board

Attractive young student or teacher writing on the blackboard in a classroom at college or university drawing mathematical diagrams and equations on the board

Confident beautiful young Asian teacher or student standing in front of a blackboard covered in mathematical equations smiling at the camera

Young female teacher or student wearing glasses standing at the blackboard doing mathematics equations and problems during class in college or university