Teacher writing on the board question mark using chalk
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Animation of yellow chalk writing the English word 'mathematics' on a board. Animation of yellow chalk writing the English word mathematics on a black chalkboard.
Teacher writing formulas on the chalk Board and explains the students the formula.
Teacher writing formulas on the chalk Board and explains the students the formula.
Writing the Word HELP
Student standing at the blackboard writing with chalk
Student standing at the blackboard writing with chalk
Student standing at the blackboard writing with chalk
Student standing at the blackboard writing with chalk