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PBS
Pbs Mathline Lesson: Geometry, It's a Perfect Fit [Pdf]
This two-part geometry lesson plan has learners identify, describe, and classify two-dimensional shapes. Students engage in hands-on activities including identifying shapes in the classroom, creating patterns with shapes, identifying...
Other
Mathematical the Four Color Theorem and Computer Proof
This site describes the role of computer involvement in the four color map theorem.
Other
Research Pages: Circle Inversion Fractals
This site introduces the iteration of circle inversions and describes the associated properties.
Other
Polyhedra: The Five Platonic Solids
A brief site that includes some activities to understand the figures.
Other
Eal: Fract Ed
A great resource for beginners. The site begins with a definition of iteration of functions, and proceeds from there to discuss fractal dimension.
Other
Personal Site: Descartes Home Page
This personal site contains Descartes Home Page. Personal information, resume, and hobbies/interests of Rene Descartes are listed here.
Other
Finite Geometry Notes: Diamond 16 Symmetry Puzzle
At this site see if you can solve the "Diamond 16" puzzle. Change the patterns to create ordinary or color exchange symmetry. This is just one of several challenging puzzles at this site. Links to similar puzzles and games.
Other
Howto: Multi Disk System Tuning
This document describes how best to use multiple disks and partitions for a Linux system. Although some of this text is Linux specific the general approach outlined here can be applied to many other multi tasking operating systems.
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Ic Teachers: Shapes: Triangles
Are you looking for a very basic website that will explain the basic properties of a triangle? Use this site to learn about the properties of equilateral triangles, isosceles triangles, right triangles,and scalene triangles. There are...
Other
Interactive Pattern Blocks
A colorful, engaging site where students can manipulate pattern blocks to create patterns or pictures. Included in the detailed directions are possible activities and a feature that allows you to email your patterns to a friend.
Other
Britannica Online: Background of Lewis Carroll
This resource describes the life of Lewis Carroll providing pictures growing up.
National Council of Teachers of Mathematics
The Math Forum: Polyhedra Nets Paper
Contains six examples of polyhedra nets (cube, tetrahedron, octahedron, dodecahedron, icosahedron, cubosctahedron).
PBS
Pbs Teachers: Architecture: Community Geometry
Identify architectural structures and objects in the community that represent different figures and types of geometry and mathematics.
Iowa State University
Math Jeopardy
It's time for Jeopardy. Detailed directions and suggested game questions are given for Math Jeopardy. Questions are attached in a PDF file that can be downloaded and printed.
Other
Ohio Resource Center: Shadows
This applet helps students visualize the shapes of shadows cast by a cube with a light coming from different angles. This helps students visualize shapes from different angles and to identify, sketch and classify the cross-sections of...
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Problemas De Entrenamiento Para El Entretenimiento
In Spanish. This site is aimed at those who enjoy solving problems. You will find a collection of Arithmetic and Geometry problems which present some challenges and are interesting and fun.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Recortando Geometria
In Spanish. In this site you will find different activities involving geometric plane figures.
Cut the Knot
Cut the Knot!: Interactive Mathematics: Geometry Articles, Theorems, Problems
Contains over five hundred Geometry articles, problems, puzzles, and games. Some sites relating to circles are provided within this list.
TVOntario
Tvo Kids: Sandy Math Shapes
Build the castles that the waves have crashed down by putting shapes in the right spot. Games focuses on geometry and spatial sense.
Learning Wave Communications
Learning Wave: Geometry, Section 2
Geometry concepts are briefly discussed at this site, including volume of a cylinder, parallelograms, circles, trapezoids, and triangles. Sample problems and applications are included for practice.
Quia
Quia: Introduction to Angles
Use this website to practice angle definitions using a matching game format.
Quia
Quia: Introduction to Angles Flashcards
Use this website to practice angle definitions using a flash card format.