Students taking a test

1600 × 1000

Professor teaching in a lecture hall

1600 × 1000

Professor teaching in a lecture hall

1680 × 1050

Professor teaching in a lecture hall

1920 × 1060

Professor teaching in a lecture hall

1600 × 900

abandoned lecture hall

1920 × 1200

Students taking an exam

3600 × 2400

abandoned lecture hall

1920 × 1080

Doctor in a medical lecture

1600 × 1200

Students relaxing in classroom

1900 × 1200

Students in a classroom

1280 × 720

students in school uniforms

1500 × 1031

teacher in classroom scene

1200 × 900

woman writing math on chalkboard

3872 × 2592

math equations on a chalkboard

1200 × 960

Chalkboard doodles

1200 × 960

Math chalkboard doodles

1200 × 960

Doctor playing guitar in lecture hall

1280 × 1024

man pointing at camera in classroom

5760 × 3840

Flash of Genius movie poster

1200 × 960