I use this ostrich center activity to help review long o. The students must pick out the long o words and add them to the ostrich's neck to extend it. The other lists of words included are short i, short o, and long i. You can create an ostrich for these words as well. You can create centers in which the students will use the other sets of words in place of long o. My students enjoy this activity and it is great for differentiation as well. I teach first grade, but this activity can also be used in a second grade classroom for students that are having difficulty mastering these words.