About this worksheet
Four prefix words each get a four-part box on this 2nd grade page: rebuild, unhappy, preheat and disobey. The rebuild box is a worked example, with a definition, a sentence about rebuilding a block tower and non-examples such as smash. Students complete the other three by writing a definition, a sentence and opposite words, and by drawing the word. It practices Common Core L.2.4b, although pre- and dis- go past the un- and re- examples in the standard. The answer key gives models such as preheating the oven for pizza.
