Activity
Other

Finite Geometry Notes: Diamond 16 Symmetry Puzzle

For Students 9th - 10th
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.
Professional Doc
History is Fun

Jan Brett: Addition Fact Puzzles Pdf

For Students Pre-K - 1st
Click on each puzzle and print out these colorfully illustrated PDF file pages to practice these addition facts. Put them in a math center. Laminate them and they will last even longer.
Professional Doc
History is Fun

Jan Brett: Subtraction Fact Puzzles Pdf

For Students Pre-K - 1st
Click on each puzzle and print out these colorfully illustrated PDF file pages to practice these subtraction facts. Put them in a math center. Laminate them and they will last even longer.
Activity
National Institute of Educational Technologies and Teacher Training (Spain)

Ministerio De Educacion: Geo Gebra Prim (Conexiones Misteriosas)

For Students 3rd - 8th
Challenge yourself with this puzzle. Try to connect the dots of the same color with horizontal and vertical segments without leaving the grid and without crossing the lines.
Unit Plan
History is Fun

Jan Brett: Home Page a Great Place for Ideas

For Students Pre-K - 1st
Children's author Jan Brett's website is interactive and has a wide variety of resources for teachers and students. A free email newsletter is available as well as book lists, coloring pages and activities. Her activities page contains...
Lesson Plan
National Council of Teachers of Mathematics

The Math Forum: Polyhedra in the Classroom

For Teachers 9th - 10th
Lesson plans for many student activities which introduce the concept of polyhedra into the classroom. Some activities can be accomplished by hand with paper, pencils, and scissors, but the unit works best if the students can regularly...
Website
Other

Groundhog.org: The Official Site

For Students Pre-K - 1st
This site from Groundhog.org provides activities for all ages to celebrate the dubious but delightful holiday of Groundhog Day! Teachers will find some great activities for the younger students like coloring pages, math activities, word...
Website
Other

Groundhog.org: The Official Site

For Students Pre-K - 1st
This site from Groundhog.org provides activities for all ages to celebrate the dubious but delightful holiday of Groundhog Day! Teachers will find some great activities for the younger students like coloring pages, math activities, word...