Usually it's thought of as a negative thing: pushing a child to achieve. Think parent-led learning, not child-led.
The classic example is from the Steve Martin movie "Parenthood." The Rick Moranis character's drilling of his pre-K daughter with flashcards is perfect. It's what people *think* we're doing with our GT kids when they don't get that we're not pushing, we're running along after and holding on for dear life to keep up!
In this case, Grinity is suggesting that getting the child to the right placement for his needs might require teaching him a few concepts ahead of time for the sake of the testing. She doesn't mean it as a lifestyle choice that is bad for the child. Just a temporary solution to a problem.
Does that help? We do sometimes speak in code...