Title

Professor erasing formulae on blackboard.

Caption

Professor erasing formulae on blackboard.
Date : 2007

Info+

Photo Tom Grill

Date

2007

Credit line

Photo12/Tetra Images

Reference

TTM08A05_232

Model release

Yes

License type

Royalty free

Available size

50,0Mb (1,4Mb) / 16,9in x 11,5in / 5081 x 3441 (300dpi)

Keywords

arithmetic caucasian chalkboard challenge classroom clearing close up color image complex computing correcting education equation eraser erasing full frame guidance horizontal indoors knowledge learning man mathematician number one person only men opportunity people photography solving symbol teacher teaching text challenging close-up color colour computation compute correct counseling educating educator inside intelligence male math numeral one person rectifying resolving school solve studying symbolic teach western european word