Woman receiving instruction in plank
Woman giving instructions to housemaid
Owner giving an instruction to cleaner
Owner giving an instruction to cleaner
Woman giving instructions to housemaid
Piano teacher listening to her student playing hometask at music lesson
Instructor and two divers, course in diving school
Divemaster and divers in aqualungs, diving school
Providing Healthcare Assistance in a Comfortable Environment
Closeup shot of a blue "Bike route" sign with an arrow showing the direction
Vocal coach training her student's voice on a lesson
Vocal teacher showing her student how to sing
Male diver in scuba gear and mask poses in pool
Origami toy made from paper puppets cat.
Male diver puts on oxygen tank, diving school
Close-up of baby, kid hands playing with slime. Child sensory development
Divers in scuba gear leisures after dive lesson
Male instructor helps woman to put on fins, diving
Female diver in scuba suit sitting at the poolside
Male diver holds scuba gear, diving school
Woman and male instructor, course in diving school
Instructor and two divers in suits, back view
Instructor and divers in aqualungs, dive course
Divemaster and divers in aqualungs, dive course
Diver and divemaster mark the dive time, diving
Instructor and two divers, lesson in diving school
Vocal lesson at music academy
Instructor and two divers in suits, diving school
Male instructor explains how scuba gear works
Male diver and divemaster in scuba gear, diving
