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    A swirling, abstract background with handwritten mathematical formulas and glowing light particles, creating a sense of energy and complexity

    A swirling, abstract background with handwritten mathematical formulas and glowi ...

    close-up of a green chalkboard filled with white chalk writing in an unorganized fashion, highlighting the use of a chalkboard in education

    close-up of a green chalkboard filled with white chalk writing in an unorganized ...