Profesor en gafas de vista mirando a la cámara mientras está de pie con las manos apretadas cerca de pizarra con tiempo para letras de conocimiento - Foto e imágenes de stock

Young pretty woman alarm clock concept

Hispanic woman looking serious showing open palm making stop gesture. alarm clock concept

Happy teacher smiling at camera while standing with open arm near chalkboard

Happy teacher in eyeglasses looking at camera while standing with clenched hands near chalkboard

Young pretty woman. happy and surprised expression. alarm clock concept

Cheerful woman holding glasses and book isolated on white

Positive businesswoman looking at camera while holding cup near flip chart in office

Happy redhead woman holding smartphone and smiling on orange

Upset brunette asian woman holding speech bubble on blue background

Happy curly girl with red hair holding blank speech bubble on pink

Worried kid looking at camera near laptop, books, paper art, globe, retro telephone and thought bubble illustration with lettering on pink

Thoughtful schoolgirl in eyeglasses looking away while holding book near paper pencil, colorful elements and illustration on yellow

Cheerful brunette woman in formal wear gesturing and standing on grey

Smiling teacher in eyeglasses standing near chalkboard with math formulas