See my explanation for the mean value of a function on Math StackExchange
See also Why I hate the World Cup.
"Pain breeds strength. Trust your struggle."

Wayne Gretzky's Stanley Cup winning goal

Wayne Gretzky, arguably the greatest hockey player to have ever played the game, scores the 1988 Stanley Cup winning goal against the Boston Bruins. One of the Gretzky's most memorable goals, it would also turn out to be his last in an Oiler uniform.

The Oilers charge the blue line, and the puck is played into the corner. This draws the Boston forwards in too deep, as the puck is played back to the blue line. Meanwhile Gretzky, instead of giving his team support in front of the net (where the Oilers are outmanned 3-1), decides to skate behind the net, emerging on the other side of the goal, with a wide open net. The Boston Bruins react to this by ignoring Gretzky, and pay the price. Watch the play develop on Youtube.

Gretzky wasn't done yet though. Watch as he sets up Craig Simpson with two seconds left in the second period for his final assist as an Edmonton Oiler.

Stupid Rich People

Believe it or not, she has a Masters degree.

Adding and Subtracting Negative Numbers

Commentary on the aftermath of the 2015 federal election

Trudeau also pledges to negotiate with the provinces on employment insurance, a new health accord, child care, job training, an "energy strategy" and agriculture. So that should make enough federal-provincial conferences for a full four-year mandate.

How long before Canadians get nostalgic for the not-so-sunny ways of Harper, who decided in 2011 what he wanted to pay for health care and then just told the premiers that's what they were getting. You've got to admit, it was efficient.

Of course, NDP Leader Tom Mulcair railed about it constantly, calling it a "$36-billion cut" to health care. And voters shared his outrage at this affront to the provinces so much that they bounced Mulcair out of the Opposition leader's chair.

Terry Milewski, Senior Correspondent - CBC News

Math Uprising in Indiana

Find out how 8-year old Lucy Crossin's "incorrect" answer to a math problem helped to bring down the Indiana State Superintendent of Public Instruction.
Read More ...

Do you need to review grades 6-12?
Consider these textbook downloads.

China tops 2012 PISA test rankings, so why aren't they celebrating?

PISA (Programme for International Student Assessment, a branch of the OEDC) tests students around the world every 3 years. Canada's decline in mathematics on the latest PISA Test (2012) has caused educators here in Canada to sound the alarm bells. And with China's stellar performance, one would think that they would be celebrating. But, they're not. Instead, they are looking to the West to inspire their own education reforms (in particular the American Advance Placement model).

North American private schools, such as Hamilton's Columbia International College, offer Chinese students skills that are currently not nurtured back in China. Two of the central difference between the two systems, is that in the West we stress critical and creative thinking, whereas Chinese schools stress fundamentals and memorization. This approach, along with 18 hour days, allow Chinese students to be strong test takers, but unable to think outside the box and to innovate.

The difference in these approaches has implications for future economic growth. As labour becomes more expensive in China, it will need to create higher value products in order to maintain its high rate of economic growth, and that will require China to innovate. Just copying products that others invent will not suffice. It will require China's future thinkers to abandon their conformist mindset and begin to think more creatively and really invent NEW products. The United States has produced many creative innovators over the years, Henry Ford and Steve Jobs being two the more recognizable. In the decades to come, we wonder if the world's next great innovator will be Chinese, or if he will be yet another American. The Government of China hope that he (or she) will be Chinese.

Here are some links to other areas of the website

Content that's coming soon

  • I'm putting my chapter on Exponential Functions on hold (for now) and directing my energies at producing a complete chapter on Arithmetic Series (for the Math on Track website). See the preview of the introduction to my chapter.

About the publisher

John Joy attended the University of Prince Edward Island where he earned a Bachelor of Science in Mathematics (with Computer Science).

Prior to graduating, he was recruited to represent UPEI at the annual Atlantic Provinces Council on the Sciences (APICS) Mathematics Competition. As a result, he led UPEI to three consecutive top three finishes and its first second place finish ever, consistently outperforming the teams from Dalhousie and UNB (two of Canada's top universities, their combined student populations represent over 40% of the students enrolled in the universities of the Maritime Provinces).

John has worked as a Math Tutor, Teaching Assistant, Software Engineer, and was part of Cogeco's Digital Migration Team (before moving on to Internet Technical Support). He is currently developing several mathematics web sites aimed at high school and elementary students.

John lives with his wife Natasha and his daughter Olivia in Hamilton, ON.