Originally Posted by Bostonian
What is "test prep"? There is no gifted education or ability grouping in most Massachusetts schools, and the mediocre Everyday Math is a commonly-used curriculum. Anything my children do beyond this, such as

EPGY
Singapore Math
MOEMS
math classes at Chinese school
IDEA math
being quizzed on math by the parents (often they ask for it)

may boost their scores on the SAT taken in 7th grade compared to students who get nothing but Everyday Math. Are these activities
OK but buying a Kaplan SAT preparation book illegitimate?

Look just down the coast at New York City, where professional tutors are hired to coach toddlers through a rigorous pre-K selection, to get a look at the extreme end of test prep, and its consequences.

Also, it would depend entirely on how many hours those additional resources you described are taking up. If the kids are just doing an hour or two a day, and they're still finding plenty of time to play afterwards, no worries.

If the enrichment is displacing all free play time, they're not on a healthy trajectory: paper