The student applies mathematical process standards to analyze attributes of two-dimensional shapes and three-dimensional solids to develop generalizations about their properties. The student is expected to:

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The student applies mathematical process standards to analyze attributes of two-dimensional shapes and three-dimensional solids to develop generalizations about their properties. The student is expected to:

Classify and sort regular and irregular two-dimensional shapes based on attributes using informal geometric language;

Distinguish between attributes that define a two-dimensional or three-dimensional figure and attributes that do not define the shape;

Create two-dimensional figures, including circles, triangles, rectangles, and squares, as special rectangles, rhombuses, and hexagons.

Identify two-dimensional shapes, including circles, triangles, rectangles, and squares, as special rectangles, rhombuses, and hexagons and describe their attributes using formal geometric language;

Identify three-dimensional solids, including spheres, cones, cylinders, rectangular prisms (including cubes), and triangular prisms, and describe their attributes using formal geometric language;

Compose two-dimensional shapes by joining two, three, or four figures to produce a target shape in more than one way if possible;

Partition two-dimensional figures into two and four fair shares or equal parts and describe the parts using words;

Identify examples and nonexamples of halves and fourths.

The student applies mathematical process standards to select and use units to describe length and time. The student is expected to:

Use measuring tools to measure the length of objects to reinforce the continuous nature of linear measurement;

Illustrate that the length of an object is the number of same-size units of length that, when laid end-to-end with no gaps or overlaps, reach from one end of the object to the other;

Measure the same object/distance with units of two different lengths and describe how and why the measurements differ;

Describe a length to the nearest whole unit using a number and a unit;

Tell time to the hour and half hour using analog and digital clocks.