Big Idea 3 : BIG IDEA 3 (Archived)



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Describe and analyze properties of two-dimensional shapes.

General Information

Number: MA.3.G.3
Title: BIG IDEA 3
Type: Big Idea
Subject: X-Mathematics (former standards - 2008) - Archived
Grade: 3
Body of Knowledge: Geometry

Related Benchmarks

This cluster includes the following benchmarks
Code Description
MA.3.G.3.1: Describe, analyze, compare, and classify two-dimensional shapes using sides and angles - including acute, obtuse, and right angles - and connect these ideas to the definition of shapes.
MA.3.G.3.2: Compose, decompose, and transform polygons to make other polygons, including concave and convex polygons with three, four, five, six, eight, or ten sides.
MA.3.G.3.3: Build, draw, and analyze two-dimensional shapes from several orientations in order to examine and apply congruence and symmetry.


Related Access Points

This cluster includes the following access points.

Independent

Access Point Number Access Point Title
MA.3.G.3.In.a: Identify attributes, including number of sides, curved or straight sides, and number of corners (angles), in two-dimensional shapes.
MA.3.G.3.In.b: Combine (compose) and separate (decompose) two-dimensional shapes to make other shapes.
MA.3.G.3.In.c: Identify two-dimensional shapes that are the same shape and size (congruent).

Supported

Access Point Number Access Point Title
MA.3.G.3.Su.a: Sort two-dimensional shapes by single attributes, including numbers of sides and curved or straight sides.
MA.3.G.3.Su.b: Combine (compose) two shapes to make other shapes.
MA.3.G.3.Su.c: Match two-dimensional shapes that are the same shape and size (congruent).

Participatory

Access Point Number Access Point Title
MA.3.G.3.Pa.a: Recognize common objects with two-dimensional shapes, such as circle and square.
MA.3.G.3.Pa.b: Recognize two-dimensional shapes, including circle and square, that are the same shape and size (congruent).


Related Resources

Vetted resources educators can use to teach the concepts and skills in this topic.

Image/Photograph

Name Description
Clipart: Geometric Shapes:

In this lesson, you will find clip art and various illustrations of polygons, circles, ellipses, star polygons, and inscribed shapes.

Lesson Plans

Name Description
Points, Lines, and Angles, Oh My!:

In this lesson, students work to identify points, lines, line segments, rays, angles and perpendicular and parallel lines. Students create webs of yarn and analyze the web for geometric properties listed above. A teacher can select which vocabulary terms are appropriate for the class.

Symmetrical Solutions:

Students will use paper cutout and geoboards to find and create lines of symmetry. Students will have the opportunity to work with a partner and independently.



Parent Resources

Vetted resources caregivers can use to help students learn the concepts and skills in this topic.

Image/Photograph

Title Description
Clipart: Geometric Shapes:

In this lesson, you will find clip art and various illustrations of polygons, circles, ellipses, star polygons, and inscribed shapes.