Next students wrote their name on a white strip of paper and returned to the carpet
Then we sorted ourselves into groups by who had brothers, who had sisters, and who had both.
Students who only had sisters were given a pink strip of construction paper to back their name on, students who only had brothers received a blue strip, and students who had both received both pink and blue.
Finally students came back to the carpet and we added their names to the Venn one at a time as they shared information about their brothers and sisters with the class. After we completed the Venn, we analyzed it by asking questions such as which group had the most, which group had the least, how many more, etc.
Here is our completed Venn. I would have rather have done it with names and pictures the way Kim did in her example, but since I was modeling a lesson for another teacher, I did not have access to pictures in time to get them ready.