This thesis is the result of a study to develop and evaluate a resource guide for use by paraprofessionals implementing the Primary Intervention Program (PIP) in public school settings. PIP is used to detect and prevent school adjustment problems in primary school students through observations of their play behaviors. The resource guide was compiled to meet the needs of children and paraprofessionals participating in a specific PIP in the greater San Francisco area. The first part of the thesis presents a literature review as well as the background and rationale of the study, during which paraprofessionals used and evaluated the guide and made suggestions for revision. The major portion of the thesis consists of the resource guide itself, sections of which discuss PIP, the role of play, Erik Erikson's psychosocial developmental theory, the paraprofessional's role in PIP, and tips on using the guide. A quick glance guide is also included. Seven appendixes to the guide present: (1) a student information sheet; (2) play dough recipes; (3) a list of board games; (4) feeling faces; (5) a description of the "Feelings in Hand" set of playing cards, which can be used to promote emotional understanding and communication; (6) a list of children's books; and (7) a list of miscellaneous resources. The final section of the thesis presents the results of the evaluation, which indicated that the four PIP paraprofessionals evaluated the guide favorably. Pre- and Post-assessment surveys are appended. Contains 14 references. (MDM)