Learning is the process of restructuring mental schemas through adaptation to new experiences. Instructional materials help form a suitable and individualized educational environment for students with hearing loss while facilitating lexical development and comprehension of academic content. This case study aims to demonstrate the contribution of visual and audiovisual materials to the efficiency of the Social Studies Course for 4th-grade students with hearing loss. Findings of the study have been collected through video recordings of the lessons, validity meetings, the research log, realia, photographs/images, graphic organizers, and educational videos/documentaries. Data analysis demonstrates that the use of visual and audiovisual materials contributes substantially to students' (a) comprehension of the questions and explanations, (b) participation in and drawing conclusions from classroom discussions, and (c) understanding of new vocabulary and concepts. Based on the results, it can be argued that the use of visual and auditory materials presented so as to cater to the individual needs of the students, together with various educational strategies, provides significant advantages in the acquisition of academic knowledge by students with hearing loss.