2D to 3D Morphing
http://pbskids.org/cyberchase/games/23dgeometry/
Print 2-dimensional shapes and fold the to create 3-dimensional ones like a pyramid or octahedron.
BBC Bitesize Shapes Tutorial
http://www.bbc.co.uk/schools/ks2bitesize/maths/activities/shapes.shtml
Identify 2D and 3D shapes
Identify That Polygon
http://www.aaamath.com/B/geo318x4.htm
identify different polygons
Polygon vs. Nonpolygon
http://www.haelmedia.com/html/sg_m2_001.html
Distinguish between polygons and non-polygons in this sorting game.
Puzzle Parlor
http://www.gamepuzzles.com/pparlor/puzzleparlmm.html
Figure puzzles, fitting pieces into geometric shapes.
Tangrams
http://pbskids.org/cyberchase/games/area/
Students manipulate shapes to form them into the shape of something else in this ancient Chinese game.
BBC Bathroom Tiles
http://www.bbc.co.uk/education/mathsfile/shockwave/games/bathroom.html
BBC tessallation interactive games involving placement of bathroom tiles.
Creating Floor tiles
http://www.shodor.org/interactivate/activities/FloorTiles/
Build a "floor tile" by dragging the corners of a quadrilateral. Learn about tessellations created from quadrilaterals when the shape you build is tiled over a plane.
Mathsville Geometry
http://www.colouredchalk.co.uk/mathsville/
Students can draw figures with reflective symmetry, draw lines of symmetry in objects to see how many lines of symmetry there are, and can explore tesselations.
Tessellate Creation
http://www.shodor.org/interactivate/activities/Tessellate/
Tessellate! Create a tessellation by deforming a triangle, rectangle or hexagon to form a polygon that tiles the plane. Corners of the polygons may be dragged, and corresponding edges of the polygons may be dragged. Parameters: Colors, starting polygon.
Tessellation Links
http://www.einet.net/directory/962725/Tessellations.htm
Totally Tesselated
http://library.thinkquest.org/16661/
Think quest site with information of basics of tesselations and also examples of them.
Mr. Anker's Geometry Skills Tests
http://www.henryanker.com/5th_Math_Q2.html
Check your knowledge on various geometry topics.