While teaching sixth grade math yesterday, I came across this tricky question in the “Pearson Math Makes Sense” textbook. Unfortunately, it didn’t take long for things to NOT make sense.
The book shows the following input / output table.
It notes that some of the outputs were intentionally incorrect and asks students to identify and correct the mistakes. That was easy enough but it then asks students to “Write the pattern for the input.”
Wrong Tomorrow is a site that tracks significant predictions by pundits of politics, finance and information technology, over a maximum 5 year time span.
Thomas Friedman: “Improv time is over. This is crunch time. Iraq will be won or lost in the next few months. But it won’t be won with high rhetoric. It will be won on the ground in a war over the last mile.” 2004-11-11
Jim Cramer: “Google goes down every day and that’s wrong. I don’t believe it’ll stay here long at all. It’ll be back to $500 in no time.” 2008-08-08
Bill Gates: “Two years from now, spam will be solved.” 2004-01-24
For the last ten years, obsessive record collectors in Usenet have been working on the Whitburn Project — a huge undertaking to preserve and share high-quality recordings of every popular song since the 1890s. To assist their efforts, they’ve created a spreadsheet of 37,000 songs and 112 columns of raw data, including each song’s duration, beats-per-minute, songwriters, label, and week-by-week chart position. It’s 25 megs of OCD, and it’s awesome.
Did pop songs stay on the top 40 charts longer in decades past? Were there more one-hit-wonders in the 60’s, 70’s or 80’s? He’s done some great parsing of some really big data sets, and the results are very interesting.