Lynn Is completely correct as usual.
But just in case you don't know what "bowl" feeding is, I will expand on her comment.
Using a small glass bowl 2.5 to 3 inches in diameter with a lip edge of at least 1in.
Placed sunken down in the substrate so the lip edge is just above the substrate.
The reason I like to slightly burry the bowl is to lessen the confusion to the frog.
I have watched mine try to eat the crickets though the glass, Comical as it is it still is frustrating for the frog

Crickets can't climb smooth clean glass. And they aren't smart enough to just jump out.
So the feeder crickets can be placed in the bowl and not have free range and possibly
bite your babies like Wnppmy mentioned.
Hope that this clarifies things for you.
And welcome to the forum.
Don't forget to introduce yourself in the introductions area if you haven't already done so.
And we love to see pictures of your babies and the living quarters.