Title

School math equation

Caption

School math equation

Date

Jun 27, 2018

Credit line

Photo12/imageBROKER

Reference

BRK23G25_152

License type

Rights managed

Available size

60,2Mb (1,2Mb) / 18,7in x 12,5in / 5616 x 3744 (300dpi)

Keywords

analysis astronomical astronomy blackboard chalk child class deserted distance energy source experiment experiment facility formula function geometry gravitation handwriting handwritten knowledge learn lesson mathematics natural science natural scientific nuclear energy outer space person physics property schoolchild science scientific solution symbolic task technical technology technology test test