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Complex math learning and formula on a chalkboard. i equals square root of negative 1. Handwritten on chalkboard
Weekly school timetable drawn on green chalkboard
Blank golf scorecard
Image of a blackboard with mathematical expressions written on it
Used golf score card. A little grungy to give it a used look.
Thulium, Ytterbium, Lutetium on the periodic table of the elements on black blackground,history of chemical elements, represents the atomic number and symbol.,3d rendering
June Month 2022 Calendar drawn on Blackboard
lotto game with cards of different colors
Blackboard with the starting letters of the alphabet
English class. Grammatical categories Verb Tenses and Aspects
Hand Lettering DAILY WORDS. 3D Realistic Stylish Isolated on White
International greeting. Word Hello in different languages for school advertisement on green background
225km marker on the banks of the Rhine River at Breisach, Germany
Diamond shaped NFPA sign provides information about hazards and severity that may occur during emergency response.
April 2024 Calendar on blackboard
Soccer football field on chalkboard
Chalk painting on blackboard
An incorrectly solved example on a green blackboard. The concept of education and training. The concept of marketing and an interesting offer.
In Western Colorado Parts of a School Class Room Getting Ready For Back To School Photo Series (Shot with Canon 5DS 50.6mp photos professionally retouched - Lightroom / Photoshop - original size 5792 x 8688 downsampled as needed for clarity and select focus used for dramatic effect)
bank card with one-time password numbers, numbered list
Bingo cards and dauber
365 foot ft baseball field distance sign in yellow and blue mounted on the outfield fence.
December 2021 Calendar on blackboard
Химический элемент криптон с серийным номером из таблицы Менделеева. Рисунок мелом.
H2O
Monochrome plan sketch.
A hand writes the word \
A CPR training class is conducted by a security guard in an office.
High angle view of track and field race course starting line with numbers 2, 3 and 4 on all weather rubber running track.
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