Free image/jpeg, Resolution: 235x235, File size: 29Kb, Graphs and diagrams on blackboard N2 picture with tags: Drawing - Art Product, Diagram, Chalk - Art Equipment, Blackboard, Circle, Arrow Symbol, Finance, Chart, Education, Pie Chart, Graph, Frame, hand drawn, Lecture Hall, Seminar, Learning, School Building, Success, Blank, Bulletin Board, Classroom, Vector, Back to School, Business
