Hyperlexia average for their age groups. Literacy education in South Korea involves teaching students entire words, rather than starting with the relationship between phonemes and letters in Hangul, despite evidence that letter name knowledge is useful for learning to read words that have not been taught. The results suggest that hyperlexics are able to obtain the relations between letters (or the smallest unit of the writing system) and their phonemes without knowing the names. Comprehension difficulties can also be a result of hyperlexia. Semantics and comprehension both have ties to meaning. Semantics relates to the meaning of a certain word while
You Don't Know What to Do that have yet to enter the main Ultratop 50 chart, and number 2 on the South Korea download chart. "You Don't Know What to Do" garnered critical acclaim amongst music critics: many complimented the disco revival and throwback style, calling it the best track on the album, and compared it to the works of Jocelyn Brown, Daft Punk, Chic and post-revivalist songs produced Pharrell Williams. Carey and Wale performed the song for the first and only time on the "Today" show in the United States. "You Don't Know What to Do" was written by Carey, Jermaine Dupri and Bryan-Michael Cox,