The K-SLP effectively involves teaching word approximations toward target words, phrases and sentences, and not simply just accepting the child’s approximation. Word approximations are continuously shaped toward the full target words to perfection.
Once the child learns a closer approximation of a target word, the old approximation is extinguished and only the closer approximation is reinforced. Full correct words and phrases are always modeled for the child. If the child is not stimulable to produce a vowel or consonant accurately, they would be taught a compensatory placement, while continuing to gain stimulability for articulatory accuracy.
There is a great deal of research supporting teaching a new behavior (in this instance, the behavior of producing and combining vowels and consonants to form words, and combining words to formulate language) through shaping successive approximations. (See the list of evidence based practice).
Every child Nancy Kaufman or any SLP at the Kaufman Children’s Center has ever taught to develop effective vocal communication was taught via successive word approximations and compensatory articulatory placements. The K-SLP methods have been implemented successfully since 1979.
Click HERE for more information on the value of teaching successive approximations.