Research has indicated that teachers are willing to be involved and are capable of being involved in instructional development. According to Kingham and Benham, team teaching has failed in the past due to three causes: a) no planning time, b) personality clashes, and c) inability to integrate the material. To solve these three problems, one can utilize Bixby's definition of supervision as a "pool of services to which all members of the professional team make contributions and from which all can draw as their needs demand." Two institutions, the State College Area School District in Pennsylvania and Indiana University at Bloomington, have attempted to develop the pool-of-services concept in team teaching. Both propose roughly the same objectives: a) the team agrees to work on a common goal--in State College, the team agrees to write course content; b) the team recognizes that each member must learn something about the other's technical background--in State College, this step involves teachers teaching each other during work days allocated in in-service programs; c) each member of the team must actually learn something of the other's respective disciplines--in State College, this means teaching the children what one has learned from colleagues; and d) the team must successfully complete a series of action steps, such as writing the instructional content and teaching the content for one teaching year. (JA)