There is a chart with 15 words. Each word is written as a singular possessive, plural, and a plural possessive. This helps students visualize the difference between each.
This is an activity that I used in a small group to reteach plurals and possessives to some of my 4th graders. I had them fold it in half so that at first the only two columns visible were the singular nouns and the column for singular possessives. After that I had them unfold, but cover the plural possessive column and we went through and completed the plurals column. After that we folder it again so that only the plural and plural possessive columns were visible. There's many ways you could use this!
This would work well as a partner or group activity or as a center activity. This could also be used as an assessment or review.