ID 141145416 © Elnur | 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.:
academic algebra back blackboard board chalk chalkboard class classroom college discussing drawing education equation exam explaining formula formulas green high knowledge learn learning lecture lecturer lesson math mathematical mathematician mathematics number physicist physics rear school science scientific solution standing student study studying teacher teaching test tutor university view woman writing