On your marks and get ‘Set’
Now that Sets and Venn Diagrams are back on the syllabus at KS4, how do we go about teaching it? 889 more words
Google Doodle today, August 4th 2014, marks 180th birthday of John Venn, the man who gave us Venn Diagrams (http://www.google.com/doodles/john-venns-180th-birthday). Anyone who has ever taken any course in statistics knows Venn Diagrams, probably as the most interesting thing they learned in the class. 152 more words
Since I do need to make up for my former ignorance of John Venn's diagrams and how to use them, let me join in what looks early on like a massive Internet swarm of mentions of Venn. The Daily Nous, a philosophy-news blog, was my first hint that anything interesting was going on (as my love is a philosopher and is much more in tune with the profession than I am with mathematics), and I appreciate the way they describe Venn's interesting properties. (Also, for me at least, that page recommends I read Dungeons and Dragons and Derrida, itself pointing to an installment of philosophy-based web comic Existentialist Comics, so you get a sense of how things go over there.)https://twitter.com/saladinahmed/status/496148485092433920
And then a friend retweeted the above cartoon (available as T-shirt or hoodie), which does indeed parse as a Venn diagram if you take the left circle as representing ``things with flat tails playing guitar-like instruments'' and the right circle as representing ``things with duck bills playing keyboard-like instruments''. Remember --- my love is ``very picky'' about Venn diagram jokes --- the intersection in a Venn diagram is not a blend of the things in the two contributing circles, but is rather, properly, something which belongs to both the groups of things.https://twitter.com/mathshistory/status/496224786109198337
The 4th of is also William Rowan Hamilton's birthday. He's known for the discovery of quaternions, which are kind of to complex-valued numbers what complex-valued numbers are to the reals, but they're harder to make a fun Google Doodle about. Quaternions are a pretty good way of representing rotations in a three-dimensional space, but that just looks like rotating stuff on the computer screen.
The readings this week focused on teaching students strategies on working with similarities and differences. According to Dean et al. (2012), “There are four strategies in the identifying similarities and differences category: comparing, classifying, creating metaphors, and creating analogies” (Kindle Version pg.1945). 248 more words