In this elementary math activity, students color all of the sets of five fish. They look at the pictures in 6 squares, count the number of fish in each set, and color those that contain 5 items.

Fifth graders discover the rule used to sort a set of data into two sets, those data that belong according to the rule and those data that don't belong. Students participate in a game to determine the rule. They discuss strategies for...

Students recognize the symbol for and demonstrate the rules of set.