1315 years
1617 years
30s
30s adult
3540 years
4045 years
40s adult
academic
adolescent
adults
boy
boys
caucasian
class
classroom
early 40s
early forties
educate
educating
education
educational
educator
few
forties
fortysomething
gesture
gesturing
guy
guys
half length
halflength
hand raised
hand raising
hand up
hands in air
hands in the air
hands lifted
hands lifted up
hands raised
hands up
high school student
highschool student
human
human being
human relationships
indoors
inside
instruct
instructing
instruction
instructor
late 30s
late thirties
learn
learning
lift hands
lifted hands
lifting hands
males
man
men
midadult
midadult man
people
photography
raise hand
raise your hand
raised hand
raising hand
relationship
room
schoolroom
several
small group of people
students
teach
teacher
teaching
teen
teenage
teenage boy
teenaged
teenager
thirties
thirtysomething
whites
young
youth