BIG IDEA #14

SHAPES & SOLIDS: Two- and three-dimensional objects with or without curved surfaces can

be described, classified, and analyzed by their attributes.

Examples of Mathematical Understandings:

• Point, line, line segment, and plane are the core attributes of space objects, and real-world situations can be used to

think about these attributes.

• Polygons can be described uniquely by their sides and angles.

• Polygons can be constructed from or decomposed into other polygons.

• Triangles and quadrilaterals can be described, categorized, and named based on the relative lengths of their sides and

the sizes of their angles.

• All polyhedra can be described completely by their faces, edges, and vertices.

• Some shapes or combinations of shapes can be put together without overlapping to completely cover the plane.

• There is more than one way to classify most shapes and solids.

Lesson Plans:

http://www.uen.org/Lessonplan/LPview.cgi?core=2

A site that has various math lesson plans including several on shapes and solids.

http://www.instructorweb.com/basicskills/lessons/geosolids.asp

Teach about shapes through venn diagram and the world around you.

http://www.teach-nology.com/teachers/lesson_plans/math/shapes/

http://www.lessonplanet.com/search_b?keywords=solid+shapes&rating=3

http://www.uen.org/

Find a lesson that is right for your class from these great selections of ideas.

Website Helps:

http://illuminations.nctm.org/ActivityDetail.aspx?id=70

Manipulate different shapes to learn more about number of faces, edges, and vertices.

http://www.compasslearningodyssey.com/sample_act/math3_4/MA3CA05a-package_preloader.swf

Practice visualizing 3D shapes through a simple game of hangman.

http://www.learner.org/interactives/geometry/index.html

A site that covers all sorts fo different aspects of shapes and solids.

http://gwydir.demon.co.uk/jo/solid/index.htm

A site that talks about all the different shapes as well as a game to help visualize the shape.

References:

Randall, C.I. (2005).Big ideas and understandings as the foundation for elementary and middle school mathematics. *Journal of mathematics education leadership*. *7*,

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