Double or Not?
http://Illuminations.nctm.org/swr/review.asp?SWR=150
The "Figure This!" Web site provides a growing set of challenges intended to promote students' problem solving ability, and students will enjoy its design lively and colorful, and simple to navigate

 The Fruit Stand
http://Illuminations.nctm.org/swr/review.asp?SWR=2120
The site provides a very cleaver reasoning game in which the student competes against the computer. The game begins with four rows of fruit, and the student and the computer take turns "eating" pieces of fruit, choosing as many pieces as you want, but they can only come from one row. The last person to eat fruit wins.

 Angles
http://www.shodor.org/interactivate/activities/angles/index.html
This activity allows students to practice important angle vocabulary. Line l is parallel to line m. Also line r is parallel to line s. Each of the angles formed by the intersection of these four parallel lines can be classified as acute, obtuse, or right.

 Geoboard
http://nlvm.usu.edu/en/nav/frames_asid_281_g_2_t_4.html?open=activities
Using this virtual manipulative you may:
* Make closed shapes
* Make open shapes
* Color the area inside of a geoband

 Geometric Solids Tool
http://illuminations.nctm.org/tools/tool_detail.aspx?id=70
This tool allows you to explore various geometric solids and their properties. Manipulate and color the solid to investigate properties such as the number of faces, edges, and vertices.

 Patch Tool
http://illuminations.nctm.org/tools/patchtool/patchtool.asp
Practice flips, slides, and turns while you create your own patch using the shapes and tool.

Illuminations Tools - Shape Tool
http://illuminations.nctm.org/tools/shapetool/shapetool.asp
This site allows you to manipulate different shapes in several ways. You can draw, color, paste, slice, rotate, reflect, expand, and contract.

Tangrams
http://nlvm.usu.edu/en/nav/frames_asid_289_g_2_t_3.html?open=activities
Use all seven Chinese puzzle pieces to make shapes and solve problems.

 Toothpick Triangles
http://Illuminations.nctm.org/swr/review.asp?SWR=1335
This is hands-on activity helps the students understand more about the concept of triangles as they form triangles using different numbers of toothpicks.

 What's My Angle?
http://Illuminations.nctm.org/swr/review.asp?SWR=2050
Students will enjoy exploring this challenge that asks the students to estimate the measure of the angles formed between your fingers. In addition, students will benefit from the connection of angles to their lives. Other practical questions are asked for the students to explore such as determining angles on a compass and a clock.

Playing with Reflections
http://nlvm.usu.edu/en/nav/frames_asid_297_g_3_t_3.html?open=activities
With this virtual manipulative you can create objects with pattern block pieces and explore Reflections as transformations of the plane.

 Playing with Rotations
http://nlvm.usu.edu/en/nav/frames_asid_299_g_3_t_3.html?open=activities
With this virtual manipulative you can create objects with pattern block pieces and explore Rotations ("Turns") as transformations of the plane.

 Playing with Translations
http://nlvm.usu.edu/en/nav/frames_asid_301_g_3_t_3.html?open=activities
With this virtual manipulative you can create objects with pattern block pieces and explore Translations ("Slides") as transformations of the plane.

Isometric Drawing Tool
http://illuminations.nctm.org/tools/isometric/isometric.asp
Use this interactive site to create dynamic drawings on isometric dot paper. Draw figures using edges, faces, or cubes. You can shift, rotate, color, decompose, and view in 3D or 2D.

Shape Explorer
http://www.shodor.org/interactivate/activities/perimeter/index.html
This site allows the user to test his or her skill at calculating the area and perimeter of a given figure. The user is given a random figure and allowed to enter a value for the area and perimeter.

 Geoboard
http://nlvm.usu.edu/en/nav/frames_asid_281_g_2_t_4.html?open=activities
Using this virtual manipulative you may:
* Make closed shapes
* Make open shapes
* Color the area inside of a geoband

 Isometric Drawing Tool
http://illuminations.nctm.org/tools/isometric/isometric.asp
Draw 2D or 3D figures using edges, faces, or cubes.

 Area and Perimeter
http://www.mathleague.com/help/geometry/area.htm
Definitions, formulas, and examples of how to find area and perimeter of different shapes and figures.

 Area explorer
http://www.shodor.org/interactivate/activities/perm/index.html
Practice calculating the area of a random shape. The student is given a random figure and allowed to enter a value for the area. The Web site then informs the user whether or not the answer is correct. The user may continue trying until the answer is correct.

 Find the Area of the Shape
http://illuminations.nctm.org/swr/review.asp?SWR=474
This Web site explores ways of deriving the area of different shapes. Students can explore the shapes and figure out the formulas for area themselves.

 Perimeter Explorer
http://www.shodor.org/interactivate/activities/permarea/index.html
Practice calculating the perimeter of a random shape. The student is given a random shape and allowed to enter a value for the perimeter. The Web site then informs the user whether or not the value is correct. The user may continue trying until he or she gets the correct answer.

 Shape Explorer
http://www.shodor.org/interactivate/activities/perimeter/index.html
Practice calculating the area and perimeter of a given figure. The Student is given a random figure and allowed to enter a value for the area and perimeter. The Web site then informs the user whether or not the values are correct. The user may continue guessing until the answers are correct.