Developing language skills is the responsibility of language instruction to hearing-impaired individuals throughout all education levels. The research data on language instruction to hearing-impaired students have pointed out language that there is an insufficiency in language instruction. There are several approaches in Turkish instruction for Turkish in Turkey. While one of them is called whole language, the other is skill based. Based on the whole language approach the learners integrate reading, writing, listening and talking skills and construct the meaning in natural contexts. The skill based approach stresses focusing on specific skills identified as developmentally important in reading and writing. The balanced literacy approach is the combination of the whole language and skill based approaches. The author has described the literature in writing, the approaches of writing instruction. In addition, he has introduced a tool developed for assessing written expressions.