This activity combines math and listening skills. I drew a line down the middle of a ziplock bag and filled the bag with water and 5 beads. I would say "Can you put 1 bead on this side and 4 beads on the other side?"
This activity introduces and enforces the different combinations of 5. It would also be a great activity to practice with "left" and "right" and/or to put in 10 beads and work with combinations of 10.