The perimeter of a shape is the length of the lines that form its sides. Since 3rd graders measure the perimeter of polygons, they will identify the length of intersecting line segments.
MA.3.GR.2.3 - Solve mathematical and real-world problems involving the perimeter and ...
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3rd Grade Print + Digital Math Activities
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Lines of Symmetry in 3rd Grade
Symmetry is a geometric attribute where a shape or object contains one or more mirror images when divided in half. This means that when the shape is folded in half the halves match up perfectly. A line of symmetry is called a line of reflection.
MA.3.GR.1.3 - Draw line(s) ...
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Classifying Quadrilaterals in 3rd Grade
In 3rd grade students begin to transition from being able to recognize shapes based on their defining attributes to understanding they can share attributes and belong to multiple categories.
MA.3.GR.1.2 - Identify and draw quadrilaterals based on their defining ...
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Attributes of Shapes
In 3rd grade, students begin to develop a more formal understanding of geometric shapes based on their defining attributes. Attributes of shapes in 3rd grade are based on geometric components like right angles and intersecting, perpendicular, and parallel ...
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Components of Shapes
Third grade geometry isn't sophisticated, but it is based on important sophisticated geometric concepts. Understanding the basic geometric components can help teachers and parents alike support students in the developments of their geometric reasoning.
MA.3.GR.1.1 - ...
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Math Fact Fluency Fun with Cootie Catchers
Do you remember the days of all your close friends huddled around a cootie catcher, moving your thumbs and index fingers while chanting? First to spell out a color, then counting, and finally waiting anxiously, hoping to reveal a fortune assuring you of wealth and ...
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