Each student gets a date. They must organize themselves in a line from the oldest to the most recent date. Check their order by asking each student to read out their date in the proper format (December one, two thousand five). Then ask students to group by month. Then group by past and future dates. Have students sit down and then time how long it takes to get into order from the oldest to most recent dates. Shuffle the cards and do it again. If they beat their time they all get a candy.