University of Regina (Canada)
University of Regina: Math Central: Enrichment Activities
Problem solving skills are demonstrated for these activities that incorporate geoboards, base ten sticks, and napier rods into the mathematics curriculum.
Texas Instruments
Texas Instruments: Walking the Fence Line
In this activity, students use the Geoboard to determine the perimeter of polygons. They learn to picture square roots visually as the side length of a square.
University of Cambridge
University of Cambridge: Nrich: Virtual Geoboard
Use this virtual geoboard to explore the attributes of various polygons. This would work well on an interactive whiteboard.
National Council of Teachers of Mathematics
The Math Forum: Using Geoboards in the Classroom
A thorough look at the extensive uses of geoboards in the classroom. Links are listed which give introductory information on geoboards - for teachers new to using them. Then, lesson plans are provided for using geoboards in teaching...
National Council of Teachers of Mathematics
Nctm: Illuminations: Making Triangles
Understand the mathematical meaning of a triangle and the idea of congruence, or sameness, in geometry.
Other
Pbs Mathline: Fractions to Half or Half Not [Pdf]
This tutorial features a hands-on lesson that teaches equivalent fractions for grades 3-4. Students explore fractional parts equivalent to one-half. Lesson plan includes an extensive list of materials, worksheets, extension activities...
University of Cambridge
University of Cambridge: Nrich: Transformations on a Pegboard
This one page website can expand your logic, Motion Geometry and pattern recognition knowledge. The solution is available to double check your answers.
ClassFlow
Class Flow: Geoboards
[Free Registration/Login Required] Geoboards bring challenge into the classroom as the student uses methods to measure length, area, and perimeters of polygons.