女子学生の黒板に数学の問題に取り組んでいます。 - ストックフォト＆画像

Female student working on mathematics problem on blackboard

Hand ceaning mathematics formula on blackboard

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

Rear view of young woman writing math equation on chalk board

Female student working on mathematics problem on blackboard

Female teacher writing on a blackboard

Female student working on difficult equation on blankboard

Female student thinking about mathematics problem on blackboard

Looking at difficult complex mathematics equation on balckboard

Hand of a student working on complex equation

Female student working on difficult equation on blankboard while holding book

Looking at difficult complex mathematics equation on balckboard

Looking at difficult complex mathematics equation on balckboard

Female student working on difficult equation on blankboard