The purpose of the study was two-fold: The first purpose of the research was to conduct the "adaptation study of Brigance K & 1 screen II to Turkish," while the second was to "investigate the effect of the enrichment program applied to gifted children and their classmates in the 1st grade of primary education on their performance in multiple intelligence fields". The research was conducted in the screening model and experimental design. The study group consisted of 477 primary schools first grade students (6 years old). Data collection tools are as follows, Brigance K & 1 Screen II scale, Goodenough-Harris draw-a-person test, Teele Multiple Intelligence Preference Inventory (TIMI), Enrichment Program Pre-test -Post-test, and "Project Evaluation Criteria List." After the screening process, a class-wide enrichment program based on multiple intelligence was applied to gifted and talented children and their classmates. Statistical Package for the Social Sciences (SPSS) was used to analyze the data at hand. The findings of the study revealed that Brigance K & 1 Screen II scale was effective in determining gifted children attending the first grade of primary school with a rough evaluation. The enrichment program results were different from the existing school program in favor of enrichment. The class-wide enrichment program has improved all children, with a more potential for gifted children. As a part of the program, a total of 163 students were given project assignments. At the end of the evaluation, it was determined that the students improved in multiple intelligence areas.