Carnival

Go check out Math Teachers At Play blog carnival at Math Mama Writes. There are lots of enjoyable posts there - I'm still reading through!

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Giveaway of 3 copies of Math Dictionary for Kids

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PRUFROCK PRESS INC. is graciously donating THREE copies of their Math Dictionary for Kids: (Grades 4-9) to be given away to my blog readers! (Only U.S. and Canada addresses, please.) This dictionary has been recently updated and is now in full color! Go check how it looks like inside At Amazon: If you want to take part in the giveaway, leave a comment here, AND email me so I'll have your email address to contact you if you win. I will run this until  August 21 OR until I get 100 entries, whichever happens first. And it's only for U.S. and Canada addresses. COMMENTS ARE CLOSED NOW... I GOT MORE THAN 100 in record time. The WINNERS are RJC, Sheri R, and mommygirl @ HCA. THANKS EVERYONE! AND, not only that, but Denise also has a math book giveaway at her blog... hers are for TWO books: Keith Devlin’s new e-book, Leonardo and Steve: The Young Genius Who Beat Apple to Market by 800 Years, and his latest print book, The Man of Numbers: Fibonacci’s Arithmetic Revolu...
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Saxon Math is not for everyone

(Updated in 2018) People sometimes ask me of my opinion or review of Saxon math. What I've written here applies in particular to Saxon Math's high school courses and middle grade levels. (The grades K-3 are by a different author and are quite different; more on that below.) Saxon Math uses an "incremental approach" where math concepts are studied in little pieces over several lessons, and those lessons are strawed over a long period of time, intermixed with lessons about other topics. In other words, if one lesson is on some particular topic (say, percentages or inequalities), it's almost guaranteed that the NEXT lesson is NOT on that topic . It jumps around from topic to topic constantly, and this is by design. Saxon's method also includes a feature where after a lesson is taught, there are very few practice problems about the topic of the lesson. Most of the problems are mixed review problems, and they practice concepts from earlier lessons, not th...
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Geometric art project: seven-circle flower design

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I got inspired by the blogpost Art School | Geometric Design with Islamic Art where Deborah shows how to make a neat flower design with seven circles , using a compass, and then coloring it using 2, 3, or 4 colors (or however many of your own). I think it ties in neatly with mathematics, and lets students practice drawing circles with a compass.  My girls loved the art/math project. Here are pictures they made: Here are step-by-step instructions for the flower design: 1.  Draw a line and a circle so that the circle's center point is on the line. Then mark the points where this circle intersects the line. 2. Use those points as center points, and draw two more circles. The radius is the same all the time, so make sure you don't change it on your compass!We used 5 cm as the radius, and that made the whole design fit neatly on a regular letter size paper. 3. Now note the two points marked in the picture. They will be used as center points in the next...
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