Multimedia technology, applied to education, typically involves the use of computer assisted instruction in conjunction with other media and is very helpful when incorporated in an intelligent tutoring system. The use of computer animation and colorful graphics may also aid in motivation and attention processes for children. Although the computer cannot replace a teacher in the classroom, when used as supplement, multimedia use in the classroom provides undeniable benefits for both teachers and students. In addition, multimedia is interactive and synthesizes sound, images, and text. Therefore it is also known that multimedia are an excellent technology when using with students with disabilities as an assistive technology. Assistive technology is used by individuals with disabilities in order to perform functions that might be difficult or impossible. It also refers to products, devices, or equipment, whether acquired commercially, modified or customized, used to maintain, increase or improve functional capabilities of individuals with disabilities. Hence, findings from this study emphasize multimedia support systems such as our program extended teachers' reach for hearing impaired students in Thailand. Additionally, study evidence results indicated our program assists students to learn more successfully when they are learning difficult words.