This doctoral thesis examines the levels of use and concerns of Grade one teachers through the use of quantitative and qualitative research methodologies. The Concerns Based Adoption Model was used as the basis for the analysis of the Levels of Use and Concerns. The quantitative dimension took the form of a survey of 94 teachers through the use of a questionnaire. The qualitative dimension of the thesis took the form of four case studies of teachers selected from the survey sample. The case studies utilized techniques such as observation, interviews, informal discussions and analysis of lesson plans for data collection. The teachers involved in the study were within the parishes of Kingston and St. Andrew and St. Catherine.