Sun in Your Pocket 1985 on netflix

A big event happens in the life of six-year-old Anya Ivanova – she goes to first grade. It is difficult for a small person to understand everything at once, to distinguish bad from good. Imitating her lively girlfriends, Anya accidentally offends her friend Seryozha and the school nanny Aunt Klava. But next to the girl are her parents, friends, and teacher, who will always help her figure out the bad and praise her for her good deed.