teacher writing on blackboard

1600 × 1000

Woman and Man in Classroom

1920 × 1080

Teacher and Student in Classroom — Blue

1500 × 1391

teacher helping student draw

4368 × 2912

child using abacus for math

3797 × 2848

Students in Classroom — Beige

4272 × 2848

Man and Woman in Classroom — Black

1920 × 1080

Students in a science lab

5160 × 3440

Student using laptop in classroom

1600 × 1066

apple on books with math equation

968 × 648

Students with knowledge sign

1000 × 685

Child studying math on chalkboard

5413 × 3508