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World wide mathematics

OK, one of my professional goals this year has been to add authentic (and objective appropriate) international math connections to my lessons. So here are some of my attempts: Buying fractional parts of villas and jets. World oil reserves - places and oil types. Polygons in geography. We are specifically focusing on other continents. Comparison of square mileage of USA states to European countries. Water conservation efforts world wide and why they are important. Comparison of gas prices gallons here to liter in Canada. Conversion of real-time temperatures in Australia (I know a guy there) to F. Conversion of mountain heights from Km to Mi. This is just a few of the things I've broached with the kids. It's late and I just can't come up with an exhaustive list right now. It's been thought provoking experience for them and has stretched me. So why do we need to have these conversations? When asked how a villa or jet could have fractional pieces. Every class decided it was...