ID 238281180 © Xpehb5 | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
algebra analysis autism background black blackboard calculate chalk chalkboard classroom college complicated design desk education equation equations exam formula formulas function geometric geometry graph graphs handwriting handwritten knowledge learn lesson math mathematical mathematics number pattern physics school science scientific sign student study studying symbol symbols teacher texture theorem theory trigonometry university white write writing written