This collection of four worksheets can be used to teach, reteach or assess writing skills at the elementary level. They can also be used as homework. Three worksheets, each with nine different examples, require students to rewrite and reword sentences containing commonly used informal words or phrases. The words or phrases that require rewording are underlined. Some sentences also contain contractions which should not be used in formal writing. The fourth page is a list of 24 sets of words that can be made into contractions. Students will combine the words to write the contractions.