Students in 1st and 2nd grade work to learn about measuring length to the nearest whole unit.
They learn to use measurement tools that measure in repeated units that are equal in length, laid out like a number line on rulers, tape measures, and yard or meter stick. ...
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Measuring Area in 3rd Grade
In 3rd grade, students are learning to measure length in fraction units. This skill combined with understanding perimeter and the attributes of 2-dimensional shapes set the stage for early experiences measuring area.
MA.3.GR.2.1 - Explore area as an attribute of a ...
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Measuring Perimeter in 3rd Grade
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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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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