This is a set of 12 task cards for students to practice identifying the meaning of vocabulary words in context, by looking at the prefix. Each task card gives one of the 12 most common prefixes with definition, and five sentences. Students are asked to identify the word, and then using the prefix definition and the context of the sentence, define the vocabulary word. An answer sheet has been provided, as well as a suggested answer key. Additionally, a set of cards has been provided that can be used as either flash cards, or as a memory matching game. Blank cards have been provided if you want to add additional prefixes. This is a great center or station activity and provides great practice for vocabulary development and as a word work activity with the Daily 5.