Ключевые слова: abstract, academic, academic concept, algebra, analysis, blackboard, calculations, chalkboard, chemistry, classroom, complexity, data, education, education concept, educational, educational concept, equations, formulas, geometry, grey, grey background, grid, grid network, instructional, intelligence, knowledge, learning, math, mathematical concept, mathematical equations, mathematics, network, no people, numbers, physics, practice, problemsolving, research, scholarly, school, school concept, science, scientific concept, student, study, teacher, teaching, textured background, textured grey background, theory, trigonometry,