If doing a lesson on sets for grade 4 what could u have them make?

You could have the students create Venn diagrams to show the relationships between different sets of objects or numbers. You could also have them create their own sets using objects such as LEGO pieces, colored beads, or cards with numbers on them. They could then sort and group the objects to create different sets based on specific criteria. Additionally, you could have them create their own "Guess Who" game using sets of characteristics to guess a mystery object or person.