Original teaching materials with dot codes, which can be linked to multimedia such as audio, movies, web pages, html files, and PowerPoint files, were created for use with students with disabilities. Hand-crafted original teaching materials can easily be created by the users themselves—for example, by schoolteachers—with newly developed and easy-to-handle software. A maximum of four multimedia files can be linked to each Post-It sticker icon and/or dot codes overlaid with a specially-designed software (GM Authoring Tool), and such multimedia files are replayed with a specially-designed sound pen (G-Speak) and scanner pen (G-Pen Blue) with Bluetooth functionality just by using the pen to touch the Post-It sticker icon and/or the dot codes on the printed document. Many activities using dot code materials have been successfully conducted, especially at special needs schools. Basic information on the creation of these materials—and on their use in schools—is presented in this chapter.