Stand closer together (3-4 feet) if catch is a new game, and stand farther apart (6-8 feet) if catch is an old favorite.
Work on an underhand throw/catch first, then you can advance to a bounce pass and overhead pass.
Remind your child to keep their eyes on the ball and to get both of their hands ready by positioning them open and out.
You can cue them to catch by “closing” or “clapping” their hands together when the ball comes.
A modification is trapping the ball between their chest and arms if they’re not quite there yet with their timing, coordination, and motor planning to catch with two hands.