Math Links for Week Ending May 31st, 2013

I was really sad when I saw this. Apparently Google hates math. Go into any Google search and type in "math makes me" and watch the suggestions that come up in the autofill. This does not happen in Bing! It did also seem like you got slightly different results in different browsers.
Curriculum Tags: All

Some Sketchpad files that were brought to my attention this week. The first one is a nice one that deals with Venn diagrams. Some clever stuff going on behind the scenes here to make this work. Thanks to Inaam Alsalman for this one.

http://sketchexchange.keypress.com/sketch/view/513/set-puzzles
Curriculum Tags: MDM4U




I really like this one on balancing equations. Its great for those just starting as it re enforces the idea of what you do to one side you do to another. I also like the fact that there is a blank scale so you can create your own puzzles. Thanks to Laurie Hannan for this one.
http://sketchexchange.keypress.com/sketch/view/47/balancing-with-balloons-solving-equations-with-negatives
Curriculum Tags: Gr7, Gr8, MPM1D, MFM1P


Just about every platform has a version of Jeopardy. Why not Sketchpad? In this one all the questions are about area. My only criticism for this one is that the answers are written in terms of pi for the circle questions. Some students may have a problem with this. But I do like that it randomly generates questions. Thanks to Lori Abkarian for this one.
http://sketchexchange.keypress.com/sketch/view/179/area-jeopardy-game-updated
Curriculum Tags: Gr8


This one does a good job of generating trinomials that need to be factored using algebra tiles (even ones with negatives). However, I strongly suggest you watch the introductory movie to show how to play the game first. Thanks to Michael Harrington for this one
http://sketchexchange.keypress.com/sketch/view/479/factoring-games,-part-one
http://sketchexchange.keypress.com/sketch/view/480/factoring-games,-part-two
Curriculum Tags: MPM2D, MFM2P

One of the students taking an additional math teacher qualifications course I am teaching made this video with Educreations on the iPad. I was pretty impressed with the way it looks. Clearly this is a good tool if you are looking at ways to Flip your classroom. Thanks to Kristin Gomes for this one.
http://www.educreations.com/lesson/view/trig-ratios/7622944/
Curriculum Tags: MPM2D, MFM2P

Many of you may have seen this proof before but its a nice visual way to show that the Pythagoren Theorem works without the use of words. Thanks to Sothea Ly
http://www.youtube.com/watch?v=MRXfc5OZqm0
Curriculum Tags: Gr8, MPM1D, MFM1P, MPM2D, MFM2P