**In This Unit of Study…**

Students will estimate the length of an object and then measure the length to the nearest inch or centimeter. They will compare and order the length of up to three objects.

**B.E.S.T. Benchmarks:**

- MA.1.M.1.1 Estimate the length of an object to the nearest inch. Measure the length of an object to the nearest inch or centimeter.
- MA.1.M.1.2 Compare and order the length of up to three objects using direct and indirect comparison.

**Key Concepts:**

- I can estimate the length of an object to the nearest inch.
- I can measure the length of an object to the nearest inch or centimeter.
- I can use a ruler to find the length of an object to the nearest inch or centimeter with no gaps or overlaps.
- I can record a measurement by using a number and a unit of measure.
- I can compare and order the length of up to three objects using direct comparison when they are side to side.
- I can compare and order the length of up to three objects using direct comparison when they are measured separately by comparing the measurements.
- I can compare and order the length of up to three objects using indirect comparison by comparing two objects to a third object.

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