Smiling teacher holding chalk and pointing at equation on chalkboard in classroom — Stock photos

"Smiling teacher holding chalk and pointing at equation on chalkboard in classroom" is a stock image by Ischukigor. It’s available in the following resolutions: 1000 x 667px, 2000 x 1335px, 7360 x 4912px. The minimum price for an image is 2.99$. Image in the highest quality is 7360 x 4912px, 300 dpi, and costs 9.99$.