Although researchers have consistently demonstrated the potential benefit of an external focus of attention for rehabilitation, research has shown that this finding has yet to be translated into Canadian physiotherapy. Further, specific barriers to external focus use have been reported by Canadian physiotherapists, and as a solution toward increasing physiotherapists' use of external focus, these same physiotherapists recommended the development of an educational workshop on focus of attention. Considering this, described herein is the process of developing such a workshop, which involved (a) gathering input from physiotherapists concerning content and format via one-on-one interviews and (b) engaging in discussion about content with focus of attention researchers. Analysis of the interview data featured key content for the workshop, the types of activities to include, and a recommended sequencing for the activities: specifically, sharing didactic information on focus of attention research, then providing instruction and demonstration of external focus use, and finally, finishing with opportunities for generating and delivering external focus statements. This input, along with that of the researchers, led to the development of a two-component focus of attention workshop, which includes an asynchronous component, featuring seven self-directed learning modules and a synchronous component, which consists of a virtual group session. [For Part 2, see EJ1398983.]