The Matrix is a simple to use format developed initially for groups. Based on an original idea by Kevin Polk the format was co-developed with Mark Webster and Jerold Hambright. It is based on the main idea of sorting behavior into two directions called Towards and Away. People also learn to discriminate between experience that belongs in the here and now, and experience that belongs in the mind. This forms a diagram with four quadrants.
Learning to use the Matrix is experiential the same as learning to ride a horse, or a bike, or play the piano, or paddle a kayak. It is a simple idea that can be learned very quickly but takes time and practice to become proficient. Mainly people practice learning to notice where behaviors are taking them, and to align that with what is important. The simplicity of the model means that it is broadly applicable and can be used outside of the usual clinical setting, for instance in education or in the workplace.