The Nth Degree Mandibular Stabilization for r and vocalic r is a pragmatic, step by step articulation therapy program. It is designed for use by school based Speech/Language Pathologists in the remediation of articulation errors for r and the vocalic r. Based on a progressive approximation approach, this program has been developed in the field with the school based therapist in mind. Forget the tired and complicated therapy approaches that rarely carry over. This program is easy to use and eas