nursemaid

"a lamb is a young sheep;  these picture books are for young readers"

"He is a student of life."

"The students walked quickly to their classrooms before the bell rang. "

"My daughter's teacher is very kind and helpful. "

"To explain a chapter of the Bible."

"The leaky faucet in the kitchen is a problem that needs fixing. "

"Go easy on him: he is but a child."

"Yesterday our local garage employed a new mechanic."

"He helped his grandfather cook breakfast."

"He navigated the bomber to the Ruhr."

"My younger brother patiently waited for his turn to play video games. "

"The complicated instructions on the new software difficult me from completing the project on time. "