How do I teach my child to read? The only way a child can read these sight words is to recognize them by sight. Knowing the most commonly used words by sight will make a child a faster and more fluent reader. Sight words, often also called high frequency sight words, are commonly used words that young children are encouraged to memorize as a whole by sight, so that they can automatically recognize these words in print without having to use any strategies to decode. This sight words app is helping kids to build speed and fluency when reading. Accuracy, speed, and fluency in reading increase reading comprehension.