The deficit is a key consideration for all parties as the federal government brings down its budget. Use the chart to explore Canada's budgetary surplus and deficit history, including revenue and expenditure figures for every fiscal year from 1963-1964 to 2010-2011. Select a prime minister's name on the left-hand side to highlight figures from his time in office.

How Many Really? compares the number of people involved in key historical events or situations to the people you know through Facebook or Twitter. You can also add your own numbers - for example, the amount of students in your class. Choose a story to get started.

Mona Gray is a 20-year-old loner who, as a child, turned to math for salvation after her father became ill. As an adult, Mona now teaches the subject and must help her students through their own crises.

Scribd lessons, focused on understanding, aligned with NCTM middle school, Algebra 1 and 2.

Very nice site for math manips.

Teaching the world mathematics for free.

Welcome to Math Playground, an action-packed site for elementary and middle school students. Practice your math skills, play a logic game and have some fun!

Math teacher blog. This teacher is ahead of the transformation curve.

Site linked from Wikipedia page on Singapore Math, argues against manipulatives, calculators, current curriculum, etc.

TVO (TV Ontario) has steaming video on scientific topics, including "The Story of Maths", and links to other subject areas.

Teacher package: On thin ice - maths and climate change in the Arctic

These pages demonstrate visual phenomena, and »optical« or »visual illusions«. The latter is more appropriate, because most effects have their basis in the visual pathway, not in the optics of the eye. When I find the time I will expand the explanations, to the degree that these phenomena are really understood; any nice and thoughtful comment welcome.

Part of a virtual tour of geometry math movies. Representing 4D shapes as projections in 3D.

Mathing…teaching education mathematics technology games and... Great post on left and right limits in student friendly terms.

Java applets some of which the website claims may be used for assessment. E.g. Venn, Fractions, Geometry Lots for Grades 3-8

This Math Resource Directory will link you to resources on the web for Math Directories, Math Tutorials, Calculators and Converters, Money and Financial Literacy, Formulas and Symbols, Data, Facts and Figures, History of Math and Math Tools

Middle school, High school, and College level math visualizations - may be useful on IWB.

Tool from Pearson for classroom math support, recommended by a college teacher.

Investigates the mathematics achievement of first year College students in Ontario. The College Mathematics Project (CMP) is a collaborative project involving Colleges of Applied Arts & Technology and District School Boards in Ontario.

Search for "math" at Compfight.com, almost all beautiful geometric pics