Retrieved February 1, 2017, from http://www.scnow.com/news/business/local/article_7a325734-bf9f-11e4-8810-273c224b551b.html

When teachers conduct word study with students they address learning needs in all areas of literacy. This is because development in one area of literacy relates to development in other areas. This harmony in the timing of development has been described as the synchrony of reading, writing and spelling.