We offer two books that target these later developing sounds! "Stephanie's Spectacular Aquarium Visits: S-Blends" does focus more on blends than S by itself. However, it is still an excellent resource with many opportunities for S not in a blend as well.
"Lily, Lana, and the Exploricorn: L and R Sounds" is our most sound-loaded book yet! It features over 200 opportunities (each!) to say and hear both R and L.
These are resources found on the internet for free, that demonstrate or provide information and activities for practicing S, Z, L, R, J sounds. Each item listed is a button with a link embedded - so click away and enjoy exploring!
See Below for printable (PDF) coloring sheets to go with these sounds!