教室の机に座っている子供たちのアニメーション、背景のデータ処理に手を上げます。教育と教育の概念デジタルアニメーション. - ストックフッテージ＆ビデオ

Digital composite of an African-American boy holding a chalk at the board while mathematical equations move in the screen

Professor cleans board with formulas appurtenant to lasers

Digital composite of an African-American boy writing on the chalkboard while mathematical equations move in the foreground

Girl cleaning blackboard in classroom. Breda, Noord-Brabant, Netherlands

Digital composite of an African-American boy holding a chalk at the board while mathematical equations move in the screen

Digital composite of an African-American boy writing on the chalkboard while mathematical equations move in the foreground

Animation of mathematical equations and symbols floating over Caucasian student writing on a blackboard.

Digital animation of African-american schoolchild raising hand with mathematical information animation on the foreground

Digital animation of a pile of colorful books in a grey room while mathematical equations and figures move in the foreground 4k

Animation of a young Caucasian woman seen from behind standing and looking at chalkboard with moving mathematical graphs and formulae written in chalk 4k