Have each student label an index card with a whole number, mixed decimal, or fraction. Choose six students to stand in line with their cards so the numbers are ordered from least to greatest. Next, ask one student at a time to join the line, positioning herself correctly, until all students are lined up. Then challenge students to rearrange themselves so their numbers are ordered from greatest to least. Finally, have small groups of students order their cards from least to greatest. To check, have the groups line up one at a time. Then have the class signal thumbs-up or thumbs-down to show whether the lineup is correct.
Reposted from: The Mailbox Activities