"I have two children. One is a boy born on a Tuesday. What is the probability I have two boys?" The solution is delightful!

Each day of the school year I present my students with an estimation challenge. I love helping my students improve both their number sense and problem solving skills. I'd like to share the estimation challenges with you and your students. Here's a handout for your students. Happy Estimating!

"Banks love math. It's how they do their thing. But banks very very much want you to HATE math. Why? Crap like this:"

This list of "myths" written with a strong political bias. Take it in with a grain of salt. I like that they include references and links for why they believe what they do. This article would be good fodder for discussion.

There's a lot of anecdotal stuff online about the myths of teaching/learning math. These "Twelve Math Myths" seem to come up again and again.

"This website is designed for educators who wish to extend the concepts of the math curriculum beyond the pages of the text. Google Earth is the dynamic tool that will be used to accomplish this."

Interactive Mathematics uses LiveMath, Flash and Scientific Notebook to enhance mathematics lessons. Topics range from grade 8 algebra to college-level Laplace Transformations.

web based (symbolic?) calculator

includes some mathematical symbols too.

over 6 million graded exams to date and over 300,000 participating students. What we believe in: Clean, quality, easily accessible, educational software for every school and child regardless of geographic location or economic class. What we don't believe in: Games, advertising, fees, spam or gimmicks. That Quiz is free for educational use.

Bring Geometry to Life with Google SketchUp Welcome to 3DVinci's Math Forum Page! Google SketchUp is a free, fun, easy-to-use 3D modeling application. Originally created for architects and designers, SketchUp is also a great tool for teaching geometry. The resources on this page will help you bring SketchUp into your classroom and show you some wonderful projects in 2D and 3D geometry.

Enter an equation or system of equations, enter the variable or variables to be solved for, set the options and click the Solve button.

Maths Solutions features experienced teachers demonstrating solutions to a series of maths problems that are known to challenge students. The solutions are presented as a series of short video clips displayed on the screen in a step-by-step format; in the same way as a teacher writing on a page or whiteboard. Choose the maths area that you need help with.

Pi Cubed is a visual math application for the iPhone / iPod touch that lets you perform calculations as you would on a piece of paper. By using an animated, touch-based interface, even the most complex mathematical expressions can be entered and instantly evaluated. These expressions are typeset as they would be in a textbook or on a blackboard. Calculations are displayed with up to 34 digits of decimal precision. Additionally, a library of over 150 equations ships with the application.

The goal of HippoCampus is to provide high-quality, multimedia content on general education subjects to high school and college students free of charge. Lots of free online courses

The goal of HippoCampus is to provide high-quality, multimedia content on general education subjects to high school and college students free of charge. Lots of free online courses some cross referenced to textbooks.

Practice Tests! All of the questions on this site come from test materials released by the Virginia Department of Education

wiki where students will summarize their class notes, so that in a few semesters, this wiki should be an online textbook. This wiki is being produced to promote better understanding of certain ideas and concepts. It will also introduce you to a modern way of managing data.

Relying on a comprehensive review of the research, Mathematics Learning in Early Childhood lays out the critical areas that should be the focus of young children's early mathematics education, explores the extent to which they are currently being incorporated in early childhood settings, and identifies the changes needed to improve the quality of mathematics experiences for young children.