There is a set of 16 cards included in this freebie.
“Group Yourselves” activity – Students spread out around the classroom. Mix up the cards and pass one out to each student. Give a signal (I say, “Group yourselves!”). Students walk around and examine one another’s cards. The goal is to “form a group” so that all of the cards go together. When you are finished, the students should be in two groups with 8 cards in each. You may need to have students share a card.
As an alternative, you could use these cards in a center or small group. Students would work to arrange the cards into sets.
I created this as a warm-up/review for my 3rd grade class, and thought others might find it useful. Thanks for downloading, and please leave feedback!