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, tessellations, and geometric solids.
These sites explain how to create tessellations with polygons using rotation and reflection. Also includes information about artist M.C. Escher and examples of his tessellation artwork. There are several interactive games for manipulating patterns online.
Learn about angles and triangles. See examples of acute, obtuse, and right angles as well as equilateral, isosceles, and scalene triangles. Includes classroom activities, quizzes, and an animated movies on triangles.
These sites offer many examples of how symmetry works in a variety of shapes. Find out the difference between reflection and rotational symmetry. Includes interactive sites that let you draw symmetrical shapes and manipulate them.
These sites are about geometric solids and their properties. Learn about various types of basic solids from manipulative objects and interactive games. Includes a lesson plan and printable templates. There are links to eThemes Resources on Geometry: Shapes and Transforming Shapes.