This is an interactive SmartNotebook file designed for use on a classroom SmartBoard or WhiteBoard. The four slides involve practice and review of singular and plural nouns, rules for changing singular nouns to plural nouns, and identifying the incorrect spelling of plural nouns based on the word's singular form. On all four slides of this interactive file, the students sort the words and receive immediate correct/incorrect feedback. This is a great file for whole group, small group, or indep