Sorry. I was too hasty. What you mean is “has gone”. As in ask your child how their day has gone/ went or was. When your kid comes home from school you say “How was your day” or How did your day go”. They usually mumble fine and go get a snack.

I don't think the sentence is grammatically correct. The correct sentence would be "Asking your child how their day was can make a big difference." "ask gone" has no meaning at all. It's wrong.

I'm quite sure this is a mistake - it should say "has gone". The sentence makes no sense. Michelle

I have never heard this phrase. Do you have a sentence that uses it?