On the 1st page, start with 9. Then find the partners of 9 underneath by moving 2 numbers together to total 9. On the 2nd page, dot the partner pairs of 9. On the 3rd page, show the partners of 9 and the switch partners. On the 4th page, write the partners of 9 on the partner train. On p. 5-7, move the tiny tumblers to show the partners of 9 on each math mountain. Then, use the to write the partner pair.