schoolchildren holding wooden cubes with word math near blackboard

alphabetblocks alphabetcubes backpacks backtoschool blackboard casual caucasian checkeredshirt cheerful childhood children classmates denimdress denimskirt education educational elementaryage friends friendship happiness happy holding isolatedongreen kids knowledge learn lettering letters math mathematics people preadolescentchildren preteens school schoolbags schoolchildren schoolgirls schooling signs smile studioshot study studying symbols woodencubes