Principles and Standards for School Mathematics - provides an electronic version of the national standard for school mathematics which was developed by the National Council for Teachers of Mathematics (NCTM). This document delineates six Principles that outline important characteristics of effective Mathematics programs and ten Standards which state what students should know at various grade levels.
Illuminations - Resources for Teaching Math - National Council for Teachers of Mathematics (NCTM page that provides a wide range of activities, lesson plans and web links for teaching mathematics. NEW Mar 2012
SoftSchools.com - provides free math worksheets, free math games, grammar quizzes and free phonics worksheets and games. Worksheets and games are organized by grades and topics. These printable math and phonics worksheets are auto generated. NEW Feb 2012
The Concept and Teaching of Place Value - Author Richard Garlikov examines the difficulties many students have in learning and comprehending place value. He offers reasons for the lack of understanding, and provides effective feedback using all mathematical elements to recreate understanding of this vital concept. He also offers several exemplary activities to reinforce the methods he discusses.
Math Problem-Solving Free Worksheets - a large selection of free worksheets is available here to print and use in your classroom. The categories include percentage, fraction riddles, perimeter and area,statistics, and much more.
Puzzlemaker - a cool tool to create math blocks, word searches or crosswords (you just submit the words), letter tiles, cryptograms and more. These types of puzzles could be very useful in math, spelling and vocabulary instruction.
Math Forum Teacher's Place - List some of the best resources for teaching math at all levels. This space has also been built in part by teachers. Be sure to check out the section on Adult Education.
Math Forum Internet Math Lilbrary - list many resources for Math
Checkbook Math - students are assigned their own checkbooks with this ongoing math and budgeting activity with real-world applications. You can tailor this lesson plan to create a monthly lesson or even a weekly effort, depending upon how much time you have.
Math Reference Handouts - a series of math handouts available from eachervision.com