This document provides spelling words and sentences for lesson 4. It includes words like pick, sick, pack, big, tack, back, sack, and so. Example sentences use the words to describe picking apples and cake, packing bags, using tack for pictures, going back home after school, Santa holding a sack, being sick, seeing a big bear, and putting files in bags. The homework is to write the spelling words and example sentences in a folder.