The four papers contained in this document were written by three members of the Materials Development Unit, Rehabilitation Research Foundation, Elmore, Alabama. These papers were selected for joint distribution to present the authors' experiences with the mathetical system in light of current mathetical programing activities. "The Two Meanings of Mathetics" and "Mathetics - The Ugly Duckling Learns to Fly" are an overview of the mathetical system and the techniques employed by the mathetical analyst and writer. "Mathetics in Industrial and Vocational Training" describes the activities of major mathetical programing units in the United States. Finally, "The Development and Production of Mathetical Programs - A Case Study" describes the major production procedures of programing units. (RP)