Vocalic R can be a tricky sound to teach, but these activities can help!
1. Rawr!
Supplies: Picture of a W, Picture of a Lion or Pirate (Linked below)
One of the simplest and funnest ways to practice vocalic /R/ at the sound level is to practice roaring like a lion.
Print this picture of a lion and set it on the table in front of the child.
Write a large W on another piece of paper and place it next to the picture of the lion. (You could also draw an R on the picture with the lion.)
First, have the child discriminate your production of the vocalic /R/ sound. Alternate between accurate and inaccurate productions as you “roar” and “rawr.”
Have the child point to the picture of the lion every time they hear the accurate /R/ sound vs. when you use the /W/ sound.
Once they are stimulable for the sound, have them practice doing the “rawr” like the lion.
You can do the same activity by printing this picture of a pirate and and practice saying “Argh” like a pirate.