Wyoming Math 3.G.1

Math3rd GradeGeometry

The Standard

Use attributes of quadrilaterals to classify rhombuses, rectangles, and squares. Understand that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.

2023 Wyoming Mathematics Content and Performance Standards · Reason with shapes and their attributes.

Teacher's field guide

What This Standard Means

What Students Need to Do

Students check whether a shape is closed and has four straight sides. They use side lengths and square corners to identify rhombuses, rectangles, and squares.

What Mastery Looks Like

Students can explain why a square is both a rectangle and a rhombus, and why all three are quadrilaterals. They can draw a quadrilateral that is none of those smaller types.

Common Misconceptions

Students may think a tilted square stops being a square. They may also think a square cannot be a rectangle or rhombus, or that every quadrilateral must fit one of those three groups.

How to Assess It

Draw a square and a quadrilateral that is neither a rectangle nor a rhombus. Under each, write every name that fits from quadrilateral, rectangle, rhombus, and square, then mark the sides or corners that support your choices.

Lesson moves

Ways to Teach It

  1. Sort cutout triangles and quadrilaterals into a large hoop, then use overlapping rectangle and rhombus hoops inside it for squares.

  2. Have partners explain whether a tilted square is both a rectangle and a rhombus, citing its sides and corners.

  3. Play shape detective with cards showing rotated and uneven figures; students name every group each card fits and point to evidence.

  4. Trace a window, square floor tile, and slanted roof panel from photos; check sides and corners before labeling each outline.

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Printable 3.G.1 Worksheet

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