1.MD.1
Order three objects by length; compare the lengths of two objects indirectly by using a third object.
| 1. | Take Your Time - order durations of 3 event, longest to shortest | |
| 2. | Acknowledging Area - order 5 objects, smallest to greatest area | |
| 3. | Acknowledging Area: Order 5 objects, smallest to largest area | |
| 4. | Short Order - order 4 animals, shortest to longest | |
| 5. | Measuring with Caterpillars 2 - informal units, thinner | |
| 6. | Measuring with Caterpillars 1 - informal units, widest | |
| 7. | Tricky Business 2 - select shorter of 2 objects, informal units | |
| 8. | Tricky Business 1 - select taller object, informal units | |
| 9. | The Strawberry Patch - longest strawberry | |
| 10. | Sizing Up - order shapes from smallest to largest | |
| 11. | Sizing Up - order shapes from largest to smallest | |
| 12. | Tall Order - order 4 animals, tallest to shortest |