Are your students having a difficult time deciphering between possessives and plurals? If your answer is yes, then this is the sort for you! Students will use the small card to determine which noun is showing possessive. They will then look for a two sentences that use that possessive. In one sentence, the apostrophe will be appropriately placed. In the other sentence, the apostrophe will be in the wrong place or not be there at all. They will sort these two sentences into “correct” and “incorrect” columns. Make the sort self-correcting by quickly labeling the correct cards with a “C” on the back. Students could quickly check their answers. This sort could be used in small groups, in pairs, or independently.