Collocations for teacher - noun

excellent, great, outstanding
competent, good, inspired, popular, skilled
bad, incompetent
sympathetic
fellow
former, retired
female, woman
male
school (usually schoolteacher when used on its own)
She was a public school teacher (= paid for by the government). (AmE)

kindergarten (esp. AmE), nursery (BrE), nursery-school, preschool
elementary, elementary-school, grade-school, high-school, junior-high, junior-high-school, middle-school (all in the US)
primary, primary-school, secondary, secondary-school (all esp. BrE)
college, university (esp. BrE)
first-grade, second-grade, etc. (all AmE)
head (BrE), senior
She held the post of deputy head teacher at a school in Leeds.

certified (AmE), qualified
experienced, inexperienced
in-service, pre-service (both AmE)
student, trainee (BrE)
master (esp. AmE)
full-time, part-time
substitute (AmE), supply (BrE), support (esp. BrE)
class, classroom, homeroom (AmE)
special-education (AmE), special-needs (BrE)
non-specialist, specialist (both esp. BrE)
subject (esp. BrE)
language
art, English, gym, history, math (AmE), maths (BrE), music, PE, science, etc.
EFL (BrE), ESL
dance, piano
Sunday-school
spiritual

have
I'm good at cooking. I had a good teacher.

train

teach sth
work with sb
teachers working with less able students

education, preparation (AmE), training
teacher preparation programs
She's been accepted at teacher training college. (BrE)

trainer
union
shortage
ratings (AmE)
teacher ratings of reading ability