Mulher com livro começa a lição, olha para o público enquanto tira óculos. Conceito de palestrante atraente. Professor parece confiante em óculos, ficar em sala de aula, quadro no fundo . - Banco de fotos e imagens

Teacher looks confident in eyeglasses, stand in classroom, chalkboard on background. Attractive lecturer concept. Woman with book starts lesson, gazes at audience while taking off eyeglasses.

Woman with book starts lesson, gazes at audience while taking off eyeglasses. Teacher looks confident in eyeglasses, stand in classroom, chalkboard on background. Attractive lecturer concept.

Student, teacher looks confident in eyeglasses, stand in classroom, chalkboard on background, defocused. Attractive lecturer concept. Woman with book prepares for lesson, gazes at audience.

Woman with book starts lesson, gazes at audience while taking off eyeglasses. Teacher looks confident in eyeglasses, stand in classroom, chalkboard on background. Attractive lecturer concept.

Mobile report concept. Woman with book talking on mobile phone in classroom. Teacher on concentrated face solving problems on phone, chalkboard on background. Teacher reporting about absent students.

Lady in formal wear on calm face in classroom. Biology concept. Teacher of biology holds book and microscope. Lady scientist holds book and microscope, chalkboard on background, copy space.

Teacher woman sit table classroom chalkboard background. Present lesson in comprehensive manner to facilitate learning. Promoting interactive learning. Create and distribute educational content.

Observe chemical reactions. Chemical reaction much more exciting than theory. Girl working chemical experiment. Educational experiment. Natural science. Biology and chemistry lessons. School classes.

Biology concept. Lady in formal wear on calm face in classroom. Lady scientist holds book and microscope, chalkboard on background, copy space. Teacher of biology holds book and microscope.

Biology concept. Teacher of biology holds book and microscope. Lady in formal wear on calm face in classroom. Lady scientist holds book and microscope, chalkboard on background, copy space.

Teacher of biology holds book and microscope. Biology concept. Lady scientist holds book and microscope, chalkboard on background, copy space. Lady in formal wear on calm face in classroom.