MA.3.1.1 3.7.a CC.2.3.A.1 M03.D-M.2.3

Length 3rd Grade

Texas Essential Knowledge and Skills (TEKS): 3.7.a
represent fractions of halves, fourths, and eighths as distances from zero on a number line;
Pennsylvania Core Standards: CC.2.3.A.1
Solve problems involving measurement and estimation of temperature, liquid volume, mass, and length.
Pennsylvania Core Standards: M03.D-M.2.3
Use a ruler to measure lengths to the nearest quarter inch or centimeter.
Florida - Benchmarks for Excellent Student Thinking: MA.3.1.1
Select and use appropriate tools to measure the length of an object, the volume of liquid within a beaker and temperature.

A ruler which has inches marked, typically has fractions of an inch marked.

The image below shows ruler markings for one eighth of an inch, one fourth of an inch, and one half of an inch.

In the image below, the first pencil is

2 \frac{1}{4}

inches long.
The second pencil is

2 \frac{1}{2}

inches long.
The third pencil is

3 \frac{1}{8}

inches long.

Length