I think you could also have multiple pipe cleaners coming from one number and students have to show multiple ways to add numbers to get to that number. Counting with pipe cleaners and beads. Great for fine motor development too.
Begin teaching NUMBER BONDS by using Use paper chains in different colours ti demonstrate. To the tune of Row Row Row your boat 9 and 1 are number bonds 8 and 2 are friends 7 and 3 6 and 4 5 and 5 are twins. Later, have them show it different ways.