Satz des Pythagoras, auch bekannt als Satz des Pythagoras, Mathematikunterricht in der Schule mit Lehrer, der mathematische Formel auf Whiteboard schreibt, selektiver Fokus - Stockfoto & -bild

Side view of math formulas and calculation written over chalboard. selective focus.

Many different math formulas written on chalkboard, closeup

On the chalk Board written by the physical formula for the electric current. Scientific background.

Side view of math formulas and calculation written over chalboard. selective focus.

Pythagorean theorem on green chalkboard, basic math education

Pythagorean theorem sketched with white chalk on a chalk board

Hand underlining with chalk on school blackboard. Teacher emphasizing something important, mock up copy space

Hand underlining with chalk on school blackboard. Teacher emphasizing something important, mock up copy space

One plus one equals two, simple mathematics calculation on green chalkboard

Teacher's hand is writing with chalk on blackboard, blank mock up copy space

Pythagorean theorem sketched with white chalk on a chalk board

Pythagorean theorem sketched with white chalk on a chalk board