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This is a photograph drawn with a sharpie of a football play consisting of X's and O's. It is isolated on a pure white background.Click on the links below to view lightboxes.
Hand writing on a chalkboard the letters abc, concept for school starters and adult literacy
Chemical formula on blackboard in classroom or laboratory.
Close up of maths equations on a school whiteboard
Hand draw a line from A to B between complication and easier process, simplify, briefly, straight to the point in communication
Easy and difficult way from a to b
blackboard in the classroom isolated on white background
A kindergarten progress report card from the 1987 - 1988 school year. Reading readiness.
Multi-Ethnic group of children sketched on blackboard
Hand schematically explaining cause and effect with chalk
Best Practice. Text on a green chalkboard.
Computer screen displaying a large number of physics and math equations, suitable for use as a science background or illustration.
Alphabet educational background.
back to school in attendance
Image of a blackboard with mathematical expressions written on it
When, how, who, what, why, where?
Hand with a pen writing Pythagoras formula on white surface
Mathematics physics calculation formula diagram.
algebra equation on old book page as background, algebra homework
Chalk painting on blackboard
The words, Stocks and Bonds, built from Illuminated capital letters based on U.S. currency. 3D Illustration
Game plan on clipboard with clipping path.
Numbers written by a child repeated on the sheet of paper notebook at school.
Rising Daily Performance
A hand is writing the number 1 on a piece of paper
3D illustration of mathematical graph with nodes containing the words GRAPH THEORY
Some weird equation in some scientific book
blackboard with handwritten alphabet,back to school,learning,education concept,isolated on white background
Businessman drawing A+ chart
Free Images: "bestof:Keppler - Beecher's Theory and Practice.jpg Beecher's Theory and Practice 9 w x 12-1/2 h caricature depicts Henry Ward Beecher and satirizes his disparagement"
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