Want to stay updated on new skill explainers and resources? Subscribe to our newsletter.
High Frequency Words (HFW) - the most common words in running text that, when read instantly, assist with fluent reading (for example, a, the, of). There are two types of high frequency words: "flash words," which are decodable, and "heart words," which are partly or not at all decodable.
Reading Universe is made possible by generous support from Jim & Donna Barksdale; the Hastings/Quillin Fund, an advised fund of the Silicon Valley Community Foundation (opens in new window); the AFT (opens in new window); the Emily Hall Tremaine Foundation (opens in new window); and three anonymous donors.
