Why Study Algebra?

Today I listened to NPR's Scott Simon and Keith Devlin of Stanford University, answer the question: Why Do We Need to Learn Algebra? (NPR Weekend Edition Saturday~February 28, 2009). Devlin described how spreadsheets have become essential to managing everything from your finances to your fantasy football team. And of course, spreadsheet are basically collections of algebraic formulas. You can follow this link to the NPR story, comments and audio file. Teachers might use Devlin's comments as a springboard for getting students to think and discuss the application of algebraic thinking in their lives. 

 

Excel 

 

This is essential, since algebra is emerging as an academic gate keeper. I'm not a math teacher, but I suspect it stems in part from the fact that many students lack basic computation skills. But more importantly,  students have to be able to transition from concrete lower order thinking skills (arithmetic) to higher-level and more abstract thinking (algebra and beyond).  

 

As Doug Reeves has noted, "The single highest failure rate in high school is Algebra I. After pregnancy, it’s the leading indicator of high school dropout. The leading indicator of success in Algebra I is English 8. The Algebra 1 test is a reading test with numbers.”  District Administrator, April ‘05

 

If Reeves is correct, then this is as much a literacy problem as a math problem. Teachers of all content areas can pitch in to support the higher order skills (analysis, evaluation and creating) that will help students with more advance mathematical thinking. 

President Obama’s Federal Budget 2010 – Education

Education continues to dominate the news with the release of President Barack Obama's proposed 2010 budget – "A New Era of Responsibility."

“The path to jobs and growth begins in America’s classrooms. The decisions we make about how to educate our children will shape our future for generations to come. They will determine not just whether our children have the chance to fulfill their God-given potential, or whether our workers have the chance to build a better life for their families, but whether we, as a nation, will remain in the 21st Century, the kind of global economic leader that we were in the twentieth. If we want to out-compete the world tomorrow, we must out-educate the world today.”  ~ President Barack Obama 

Click for Office of Management and Budget Fact Sheet Download Fy10_education   

This budget comes on the heels of  the recent stimulus package which devoted $115B for education. Diagram from Education Week. Click chart to enlarge.

Ed-stim

President Obama’s Address to Congress 2/24/09 – Education in the Word Cloud Top 25!

Note: For full web version of President Barack Obama's speech to Congress Feb 24, 2009 click here.  

I think Wordle.net is a great tool that helps teachers and students to analyze text. Read my post to see some ideas for how you can use Wordle to foster literacy and critical thinking in your classroom. 

I used Wordle to make the "word cloud" below out of the text from President Obama's speech to Congress. I chose a setting to display the 25 most frequently used words in his speech. Glad to see that education made the top 25 of his verbal agenda!

You can make your own Wordle version of  his speech. Here's a text file Obama-2-25-09 of his words taken from the NY Times transcript. (I deleted the applause breaks.) Copy and paste it to the Wordle "Create" page and make your own word cloud. For more on Wordle font and layout setting click here
Obama-address-25

How to Embed a Prezi Presentation in Your Blog

prezi

Please note that Prezi’s embed options have changed.
I updated this post on July 16, 2011.

 

Prezi is a great presentation software that replaces the lineal PowerPoint style with the ability to present text, videos and images in a unique zooming style. Here are samples of how I use Prezi in a variety of settings.

Here’s How to Embed

1. Open your online Prezi presentation and look for the Share tab (lower right in this screen shot.) Click share.

prezi embed 1

 2. You will get the dialog box below. When you choose “</> Embed” tab the dialog box expands and reveal your embed settings. You may want to adjust the pixel size to fit into your blog columns. Copy and paste the html code into your blog.

prezi embed 3

Wiimote Interactive IR Pen Whiteboard Solution

It's only been just over a year since Johnny Chung Lee's first posted his creative solution for turning a Wii remote into an cheap interactive whiteboard system. Watch Johnny Lee's original IWB video.   

Last week, Stan Merrell and Adam Wilcox - two of my Rochester NY tech buddies, met fellow Rochestarian – Tino Agnitti. Tino has developed a great Wii mounting bracket and IR pen that makes assembling Lee's Wii creation a snap. Tino calls his IR pen "The Groove" it's a sleekly designed, 2nd-generation IR pen that features – Hybrid Activation Tip Switch and Button, Treated LED for better tracking, Vishay TSAL6400. It runs on AAA batteries and it works great. I was especially impressed with its very intuitive interaction with writing applications. Tino also created "The Spot," a mount to connect your Wii remote to a standard tripod with a 1/4" – 20 thread.

Tino sells his Groove/Spot combo for only $39. Spend another $39 for a Wii remote (no need to use the rest of the Wii system) and you have an interactive whiteboard on any flat surface you choose to aim your  LCD. Tino showed me how to  aim the Wii at my monitor and we turned my MacBook into a tablet! 

Software? For PC, Tino recommends Smoothboard produced by Boon Jin Goh, a friend who lives in Singapore.   Tino set me up with the Mac version – Wiimote Whiteboard that I'm running. It comes out of Germany from Uwe Schmidt, a master's student at Darmstadt Technical University.  It was a quick install and it's especially easy to calibrate. For more on the growing wiimote community check out The Wiimote Project Forum  

I'm working on integrating the wiimote system into a portable whiteboard that I can use in my presentations. I'm very excited about pairing it with Prezi – its zooming capabilities will allow me to do exciting nonlinear presentations. 

My buddy Stan Merrell shot our meeting Tino