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Math: Geometry: Composing and Decomposing Shapes Discuss this eTheme.

These sites are about composing and decomposing shapes. Learn how to subdivide, combine, and transform shapes to form new polygons. There are interactive games, activities, and lesson plans. Included are three eThemes resources on shapes, transforming shapes, and pattern blocks and tangrams with related activities.

Grades

  • 2,
  • 3,
  • 4

Links

Click and drag the shapes to create new geometric shapes and patterns. Use the arrows at the top of the page to move and rotate the blocks.
These sites are about shapes including quadrilaterals and polygons. Includes definitions and examples of various shapes in everyday life. There are interactive sites with games, manipulatives, and animated movies. Includes links to eThemes Resources on symmetry, triangles, lines, and tessellations.
These sites help students visualize what shapes look like after they have been reflected, rotated, flipped, and translated. Includes virtual manipulatives that lets students change the shapes online. There are links to eThemes Resources on shapes, symmetry, and tessellations.
Students can drag, clone, and rotate geometric shapes into new shapes and patterns with this virtual pattern block program.
Follow the steps to cut and fold paper into tangram shapes.
Students can explore how to decompose shapes and recompose them to make other shapes with this interactive tool.
Students can explore various geometric shapes and see where they are found in the world around them in this lesson activity.
These sites are about shapes including quadrilaterals and polygons. Includes definitions and examples of various shapes in everyday life. There are interactive sites with games, manipulatives, and animated movies. Includes links to eThemes Resources on symmetry, triangles, lines, and tessellations.
These sites help students visualize what shapes look like after they have been reflected, rotated, flipped, and translated. Includes virtual manipulatives that lets students change the shapes online. There are links to eThemes Resources on shapes, symmetry, and tessellations.
This is a collection of sites about pattern blocks and tangrams. There are several interactive sites that allow you to manipulate blocks and tangrams online. Also includes hands-on classroom activities that focus on polygons, area, angles, fractions, and patterns. There is a link to an eThemes Resource on geometric shapes.

Education Standards

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