Wednesday, January 5, 2011

The Average Person Spends 24 Years of Their Life Asleep

No objections to the grammatical error in the title, please! It's a quotation from "The Joy of Stats", a 1-hour BBC Four program narrated by the Swedish public health expert and statistician Hans Rosling. I had first heard of him when a friend sent me a link to the short video, "200 Countries, 200 Years, 4 Minutes", which turns out to be an excerpt from "The Joy of Stats". If you want to take four minutes of your life to feel much much better about the future of the planet, stop and watch that video now.

While watching this video, it struck me that it would be a great way to address one of my New Year's resolutions for teaching: TEACH MORE STATISTICS.

I teach math to students who don't love math and maybe never will despite my best efforts. Some of them may go on to take calculus in high school or college, or they may study engineering, economics, medicine or some other field that demands high mathematical abilities. But my guess is that some of them will be artists, some will be business owners, some lawyers, some journalists (if that's still a profession in their time), etc. Those professions just don't require a high degree of specialized algebra or calculus knowledge. Yes, it's great for them to develop problem-solving abilities through algebra, geometry and calculus. But honestly, what they need to is to learn stats. That's where we see math everyday.

Here's a challenge for you. Pick up a newspaper and find a random article. Now try to read to the second column of the article without reading a statistic. Good luck. Stats matter. We are constantly confronted with them so that we will be persuaded to believe the arguments and stories put before us. Stats have all the credibility. Especially in today's world of overwhelming amounts of data.

So, my goal is to teach more statistics and maybe even to have students connect statistics (and hence math!) to the things they already care about. Baseball. Basketball. Blockbuster movies. Cell phones. Shopping. Whatever.

Here's where I need some help. What should students learn to do with statistics? We teach them about mean, median, mode, etc. But what about teaching them how to collect data? And deal with organizing messy data from multiple sources that come in at different times?

Do you use statistics in your life? What do you do?

Tuesday, January 4, 2011

Shameless Attempt to Be a Featured Workspace on Lifehacker

I work with students on editing their writing at my desk, but it's often awkward to share the keyboard and mouse. All I want to do is show where the student needs to insert a comma or fix a typo, but it can be disruptive when we they don't understand exactly where I mean.

Also, with some students it is very difficult for them to get their ideas out when they have to write them, although they can give you perfectly clear answers verbally. So sometimes I will type the work for them while they dictate, but then the keyboard is out of their hands and they can't transition into writing for themselves.

I solved this problem by adding an Apple Wiresless Keyboard and Magic Mouse to double up. The installation was easy since both devices work on Bluetooth. The wireless keyboard is much smaller, which is nice since many of my students are so used to their laptop keyboards that they have trouble using the larger standard keyboard. The Magic Mouse has so many extra features like zooming and web browsing that its an upgrade. All of it is so small that it doesn't have to clutter my desk and I can put it all away if I ever really need the desk space.

Today we installed the same devices on the other desks in our office and the response has been good. I just finished watching a teacher and student have a typing race. It will be interesting to see how helpful this is once everyone gets used to the new devices.