Sweater Math

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fred_rogers_sweater.jpgToday (March 20) is what would have been the 80th birthday of Mr. Rogers. Fred Rogers was no stranger to math: if there are any young children around, you can find seven mathy Mr. Rogers activities here (the math mostly being of the kind found in recipes, and appropriate for the younger crowd).

In honor of Mr. Rogers and his penchant for sweaters, March 20 has been declared Sweater Day. So if you like to wear sweaters, this is the day to do it (as explained by Mr. McFeely in the video below):

In honor of this day, too, you can check out the Chasing Bunny‘s entry “Removing the VooDoo from Knitting Math”, which explains how proportions are used to adapt sweater patterns to different sizes, or “Knit by Numbers” on knitty, which explains how to use simple math to figure out how to create a sweater pattern from scratch.

Thanks to Rickey for alerting me to this special day!

The picture of Mr. Rogers’ sweater in the Smithsonian Institution’s Museum of American History is posted under the following permissions: “This file is licensed under Creative Commons Attribution ShareAlike 2.0 License (cc-by-sa-2.0). In short: you are free to share and make derivative works of the file under the conditions that you appropriately attribute it, and that you distribute it under this or a similar cc-by-sa license.”

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