Showing posts with label data. Show all posts
Showing posts with label data. Show all posts

Sunday, March 7, 2010

Sometimes This Stuff Still Amazes Me

Just a quick post to note that I still find my own personal networked world to be pretty fascinating and amazing. Yesterday I was talking with my wife about a homework assignment Abby had in math where she needed to gather some data. So I threw together a quick Google Form, posted on my blog, and tweeted it out.

Very quickly the responses started coming in, mostly from Twitter I suspect because I doubt that many folks had seen the post at that point. (Next time I may add a question about where they found out about the survey just to confirm that.) About a day later we now have 299 responses (as of this writing) from 43 states and 18 countries (counting the U.S.). (You can see the results embedded in that post.)

Now this particular survey and this particular post are nothing earth-shattering, but it again reminds me of how different the world is from when I was growing up; how easy it is to connect with others around the world, and certainly how easy it is to gather data via Google Forms, a blog and Twitter. While I certainly still need to do a lot of thinking about how best to utilize this capability in meaningful ways, I think we all as educators need to be constantly asking ourselves the question, "What can we do now (that is relevant and meaningful for students) that we couldn't do before?"

Abby playing guitar for Grandma via Skype.

Sunday, August 23, 2009

How Many People in Your Family?

This post is more of just an extended tweet than it is a blog post, but I thought it might be interesting to share.

My daughter had a math assignment where she was supposed to gather data on how many people were in people's families, then graph it and determine things like median, mode, range, maximum and minimum (interestingly, not the mean, although they've done that for other problems - which is probably good since median makes much more sense for this problem). Just for fun I created a quick Google Form and tweeted it out.



The only required question was "How Many People in Your Family?" with some directions on how to define that for this problem, but then I also asked (just because I was curious) two optional questions: your location and your age.

Well, that quick tweet generated 95 responses (so far). Since Abby is at the point where it's still really hands-on with the data and you generate graphs by hand (to get a better understanding of the concept), that was a little more than she needed, so she decided to just use the first thirty-two. Here are her results:










In case you're curious, here are the results for all 95 data points:



The median and the mode were both 4 and the standard deviation was 1.54.

For those of you curious about the ages of the respondents, the mean was 40.37, the median and mode were both 39, and the standard deviation was 10.96. (It might be interesting for someone to do a more randomized survey of educational tweeters to see if anything could be deduced from the results - both age and family size data.) We had responses from all over the U.S., Canada, the United Kingdom, Australia and Thailand.

So, nothing profound here, but I just thought it was interesting in several respects. First, how many folks responded to a tweet that obviously was not going to have much benefit for/impact on them. Second, how easy it was to generate data via a tweet and a Google Form (not randomized, I realize, but still interesting). Finally, I found the age and family size of the folks who responded interesting, even if I can't draw any major conclusions from it. (Perhaps: The mostly educational twitterers who follow me and responded to this tweet are typically between the ages of 30 and 50 and have two to five people in their immediate family - not a huge surprise.)

Thanks to everyone that helped Abby with this assignment and, if you have anything more profound you can generate from this, feel free to leave it in the comments.

Tuesday, August 12, 2008

Google Maps, Google Earth and the Summer Games

Just a quick post to point out this story from the LA Times:
From where do the most Beijing Summer Olympic medal winners hail? Despite Michael Phelps being well on his way to breaking Mark Spitz�s record of seven gold medals at a single Games, it�s not North America that has the most gold medals so far. According to the Google Maps� Summer Games 2008, as of Aug. 12, 2008, China has won the most Olympic gold. The United States has won the most overall medals.

The Stadium page is my favorite of all the maps. Click on a stadium and watch a video as Google Earth zooms in. They also offer a photo and info about the venue.
Nothing major here, and probably no real educational relevance (other than curiosity, which isn't such a bad thing), just thought it was interesting. I bet there are more creative uses of Google Maps/Earth and the Olympics. If you know of any, please leave a URL in the comments.

I'm way behind in my aggregator (with no hope of catching up now that school is officially upon us), but it sure seems like somebody, perhaps dy/dan, should have a post coming soon with some great problems using current Olympic data. (I'm pretty sure he posted a while back doing some predictions with Olympic data, but I can't find it at the moment - somebody leave that URL in the comments as well and I'll update the post.)