Design, utilization and improvement of instructional materials in which its role in the country’s educational system at all levels of instruction is directed towards improving the quality of education in the country. A developmental study was conducted on the validity and reliability of a developed workbook in Basic Drawing along the areas of content in terms of objectives, contents, organization and mechanics and procedures. And further determined its format validity in terms of accuracy, illustrations, presentation, readability, time allotment, and usefulness. Three experts, and faculty and students of the University of Eastern Philippines rated the workbook. The entire study was completed during the School Year 2018-2019.

Keywords : Validation; Development; Workbook; Basic Drawing.