Word families are a group of words that have a similar pattern and are the first step in reading and learning vocabulary. There are three main categories of word families under ending sound, starting sound, and middle sound. Word family represent groups of letters with the same sound. These words help children identify the sound and word patterns as they begin learning to read and write. Wordlist worksheets help children develop phonological awareness, reading, and spelling skills. Here is a series of reading, writing, phonics, and activity worksheets for at, ap, aw, and ab word families.