2024080238 影片素材 第1頁

Aged man college professor sit at desk in classroom in front of chalkboard, searching for document in pile of paper sheets. Education concept.

Aged man college professor standing in classroom in front of chalkboard explaining geometry lesson, draws triangle with chalk, close up. Education concept

Aged man college professor sit at desk in classroom in front of chalkboard talking to students explains lesson, close up. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard explains chemistry lesson by laptop online call with students. Education concept.

Aged man college professor sit at desk in classroom holding smartphone chroma key green screen and pointing at it. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard, looks around counting money, hides cash in notebook, close up. Education concept

Aged man college professor sit at desk in classroom in front of chalkboard smiling positive expression looking at camera. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard grading test papers, highlighting mistakes with red marker. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard explains lesson online using laptop. Education concept.

Aged man college professor sit at desk in classroom with laptop chroma key green screen and pointing shows thumb up. Education concept.

Aged man college professor standing in classroom in front of chalkboard explaining lesson, wiping board with math samples, close up. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard gives test feedback to student via video chat on laptop. Education concept.

Aged man college professor standing at desk in classroom in front of chalkboard solving algebra formula sample on board, explains lesson. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard with paper sign word sale on it and counting money. Education concept.

Aged man college professor standing at desk in classroom in front of chalkboard drawing figures with chalk, explains geometry lesson. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard explains astronomy lesson, shows card solar system planets. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard talking to students explains lesson on notebook, close up. Education concept.

Aged man college professor standing at desk in classroom in front of chalkboard writing algebra formula sample on board, explains lesson. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard explains lesson using laptop online video call with kids. Education concept.

Aged man college professor at desk in classroom in front of chalkboard talking to students, stands up explaining lesson to class. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard talks by video call on laptop gives feedback on test. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard drinking coffee resting after lesson. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard talks to students, frustrated serious expression. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard talking to students, explains lesson. Education concept.

Aged man college professor standing at desk in classroom in front of chalkboard writing chemistry formula on board, explains lesson. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard talking to students, explains lesson. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard talks to students, frustrated expression, throws cramped paper. Education concept

Aged man college professor sit at desk in classroom in front of chalkboard explains math material using laptop online call with students. Education concept.

Aged man college professor standing at desk in classroom in front of chalkboard explains chemistry lesson, holding glass with blue liquid. Education concept

Aged man college professor sit at desk in classroom in front of chalkboard talking on smartphone, drinks coffee. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard pointing at empty space holding hands up. Education concept.

Aged man college professor standing at desk in classroom in front of chalkboard talking explaining lesson to students. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard holding test papers and giving feedback to student. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard explains chemistry lesson, shows colorful liquids glass tubes. Education concept.

Aged man college professor standing at desk in classroom in front of chalkboard writing algebra formula sample on board. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard pointing at empty space shows thumb up. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard counting money bribe and hide banknotes in notebook. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard talking to students explains chemistry lesson, close up. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard explains lesson to junior kids by video call on laptop. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard explains lesson using laptop online video call with students. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard learning online using laptop, writing in notebook. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard looks at camera, talks with serious face expression, close up . Education concept

Aged man college professor sit at desk in classroom in front of chalkboard talking to students explains astronomy lesson, close up. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard listening music n headphones on smartphone. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard grading test papers with red marker. Education concept.

Aged man college professor standing in classroom in front of chalkboard explaining lesson, writing algebra sample, close up. Education concept.

Aged man college professor walks into classroom dancing happily and sits at desk in front of chalkboard . Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard explains lesson online by video call on laptop. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard with paper sign black friday and counting money. Education concept.

Aged man college professor standing in classroom in front of chalkboard explaining lesson, writing algebra sample, close up. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard explains math using laptop online video call with students. Education concept.

Aged man college professor standing in classroom in front of chalkboard explaining chemistry lesson, talks about formulas, close up. Education concept.

Aged man college professor standing in classroom in front of chalkboard explaining lesson, wiping board with chemistry formulas, close up. Education concept

Aged man college professor sit at desk in classroom in front of chalkboard talking on smartphone, drinks coffee. Education concept.

Aged man college professor sit at desk in classroom in front of chalkboard grading test papers, tired expression. Education concept.