RE: Tricks to teach the
My DD has expressive language delay, and we drill intensively to get her to use the final consonants in words. The speech pathologist we work with taught us to use "visual cues" to help her do this. The visual cue for K is pointing to the top of your throat, since the K sound is made at the back of the mouth, in the throat.
So say the word: booK, putting a lot of emphasis on the K and pointing to your throat at the same time. And have a dialogue something like: "Oh, you want a booK. booK. booK. Can you say booK? Say it again? booK. Great job!" Do that a few times a day.
You also might want to find a book that has a lot of K sounds in it and read that book a lot. We are mainly working on final P, so we read a lot of "Hop on Pop" and "A Great Day for Up!".
But really at this age, he's doing really, really well. He'll get it on his own soon!
HTH,
Beth, mom to older DD (8/01) and younger DD (10/06) and always missing Leah (4/22 - 5/1/05)