ID 197220191 © Stokkete | 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 adult blackboard calculate chalkboard classroom college discovery education engineering explaining formula genius intelligent knowledge man math mathematician mathematics maths papers paperwork physics pointing presentation professor reading research researcher scholar science scientific scientist seminar shirt smart smiling solution standing stem student studying teacher teaching theory tie university young