I have to credit my son's pre-K teacher for this idea. First, I cut out the large blue rectangle for the phone and a small square for the screen. Next, I wrote the numbers on phone to make the buttons.
Finally, I wrote the numbers from 1-9 on the Smarties and had D match them up and glue them to the paper.
AFTER I took the pictures (for obvious reasons) I wrote our phone number on phone and D practiced it by pushing the "buttons."