In this paper, a scheme for organizing teaching skills or competencies is described. The competencies listed were identified by using a combination of four methods: polling; poaching from prepared lists; observing; and, mainly, analyzing the teaching act. The paper states that the analysis was strongly influenced by Freider's work in which six teaching functions are identified. It is indicated that to date thirty-seven clusters have been identified and grouped into three experience levels. The appendix includes specific outcomes or performance statements for each competency cluster shown in the grid in the text of the paper. (JA)