Senior professor standing in front of students in classroom and explaining math formulas on chalkboard during lesson in high school
Studying Physics With Pencil On White Paper 2
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Teenage Students Conducting Magnetic Filings Experiment in Science Lab
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Teenage Students Conducting Chemistry Experiment with Eggs and Beakers
Man writing and drawing formulas, graphs and charts with marker on white board
Conducting science experiment, students with teacher in high school laboratory
In a highschool science lab, an Asian teacher examines a test tube
Closeup of professor talking to students as camera scans across the projector with lens flare and then across the classroom.
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Teenage Students Conducting Magnetism Experiment in Science Lab
Pupils Carrying Out Experiment In Science Class
Happy Latino Boy At School Portrait Of Hispanic Student Smiling
Young student smiling by chalkboard in high school classroom
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Teenage Students in Lab Coats Conducting Science Experiment in Classroom
Student explaining formulas to professor and classmates in high school
Children And Education Female Child Smiling At School
Animated student notes line icon. High school classes animation. Natural science learning. Education in high school. Studying. Outline element on white background. HD video with alpha channel
High School Pupils Carrying Out Experiment In Science Class
High School Pupils Carrying Out Experiment In Science Class
Studying Physics With Pencil On White Paper 1
Student discussing lesson with professor in high school
In high school laboratory, students conducting science experiment with beakers and test tubes
Young woman teaches science in a high school classroom
Pulling Cork Block with Metal Weights on Cardboard
High School Pupils Carrying Out Experiment In Science Class
Teenage boy and young woman in a high school lab
Student writing chemical symbol on blackboard.
A student guy in a medical mask writes calculations with chalk on a black blackboard. Education in the post-warranty period.
In high school laboratory, teenager conducting experiment with beakers and test tubes
High School Pupils Carrying Out Experiment In Science Class
Science Teacher Standing At Whiteboard With Digital Tablet
Mid-adult businesswoman explaining line graph on the flipchart to her colleagues and answering their questions
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USA - 1955 - In this educational film, a man speaks about ice. A test tube is put in a glass of ice.
In high school, teenagers conducting science experiment with test tubes in classroom
SAN FRANCISCO - 1952 - An elementary school teacher asks her students to define the word "contributions" as it relates to government funding for a new dam, and asks a student to read the sum.
In a school science lab, a biracial teacher examines a test tube
A teenage boy examines a test tube in a lab
Young woman teaches science in a high school classroom
Young student answering questions of professor during high school lesson
Man writing and drawing formulas, graphs and charts with marker on white board
A man performs an exercise with a rope in gym
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Close up of people talking to the camera, presenting data on chalkboard, business professional expla
No people close up shot of gray thread with metallic sheen wound onto black spool, leading into 3D printer in modern classroom
1926 - In this animated film, mice ring bells to alert the fire department to a burning building.
High School Chemistry Class Writing Assignment
Man erasing formulas, graphs and charts from white board
Drawing Shapes on White Board
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Teenager Conducting Science Experiment with Eggs and Beakers in Laboratory
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Schoolgirl Dropping Dry Ice into Beaker During Science Experiment