A photo of a classroom blackboard filled with neatly written equations and diagrams with chalk residue on the surface
Palabras clave
education,
horizontal,
no people,
color image,
indoor,
text,
learning,
mathematic,
classroom,
complexity,
concept,
number,
textured,
abstract,
closeup,
africa,
back to school,
background,
dirt,
handwriting,
idea,
material,
messy,
poverty,
scratched,
university,
vertical,
copy space,
dirty,
rubbing,
art,
blank,
business,
empty,
studio shot,
tanzania,
unhygienic,
clean,
dark,
full frame,
old,
pattern,
single object,
textured effect
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