Zmačkaný papír koule letící na vyděšené učitelek ve třídě s tabuli na pozadí - Stock fotografie a obrázky

Crumpled paper balls flying at frightened female teacher in classroom with chalkboard on background

Exercises to maintain vivacity. Work far beyond actual school day. Stretch and do exercises to increase vivacity and get energy charge. Teacher woman sit table classroom chalkboard background.

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Exercises to maintain vivacity. Work far beyond actual school day. Stretch and do exercises to increase vivacity and get energy charge. Teacher woman sit table classroom chalkboard background.

Male teacher in formal wear wiping mathematical equations with sponge in classroom

Crumpled paper balls flying at frightened male teacher in classroom with chalkboard on background

Male teacher in formal wear writing equation on chalkboard in maths class

Male teacher sitting at desk, pointing finger in air and explaining equations in maths classroom

Male teacher wiping mathematical equations with sponge from chalkboard in classroom

Smiling male teacher in formal wear holding wooden pointer in front of chalkboard with equations

Young african american teenager writing on white board

Crumpled paper balls flying at frightened male teacher in classroom with chalkboard on background

Young seductive teacher sitting at workplace with globe and laptop in classroom