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# Author Archives: Sarah Spoenemann

## The Largest Known Primes

January’s Site of the Month: The Largest Known Primes – A Summary In January a new largest prime was found – with over 22 million digits. Cooper, Woltman, Kurowski and Blosser used GIMPS (Great Internet Mersenne Prime Search) which is … Continue reading

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## Mathematics for the Million

January’s Book of the Month is Mathematics for the Million: How to Master the Magic of Numbers by Lancelot Hogben. First published in 1936 and reprinted many times. From the Prologue: “The customary way of writing a book about mathematics … Continue reading

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## Historical Topics for the Mathematics Classroom

December’s Book of the Month is Historical Topics for the Mathematics Classroom by J.K. Baumgart, D.E. Deal, B.R. Vogeli, A.E. Hallerberg, eds., published by the National Council of Teachers of Mathematics. This book has a summary of the history of … Continue reading

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## Imaginary

December’s Site of the Month: IMAGINARY Imaginary is a site containing “vignette-like” short articles on modern mathematics for a general audience. It emanates from the Mathematics Research Centre at Oberwolfach, where groups of mathematicians meet to work on particular areas … Continue reading

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## Geometry and the Imagination

November’s Book of the Month is Geometry and the Imagination by Hilbert and Cohn-Vossen. First published in 1952. The AMS website says: “This remarkable book has endured as a true masterpiece of mathematical exposition. … The book is overflowing with … Continue reading

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## Accromath

November’s site of the month: Accromath This is the site of a French-Canadian journal aimed at a mathematics teacher audience. Now in its 10th volume, the journal has articles in French that can be read online or download as pdf. … Continue reading

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## The Laboratory of Mathematical Instruments

October’s site of the month: The Laboratory of Mathematical Instruments October’s book of the month: Bartolini Bussi, Maria G., Maschietto, Michela (2006). Macchine Matematiche. Springer Japanese Translation: Kyokusen no jiten : seishitsu rekishi sakuzuhoÌ, Tankoban Hardcover A mathematics teacher coming … Continue reading

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## Trading in a Town

Originating authors are Alberto A. Pintoa (University of Porto, cLIAAD-INESC Porto LA) and Telmo Parreira (University of Minho, cLIAAD-INESC Porto LA). Have you ever been frustrated by the lack of choices when you go to buy something? Why do producers … Continue reading

## Proofs From The Book

April’s Book of the Month is Proofs From The Book by Martin Aigner and Günter Zeigler. (The first edition came out in 1998 — note the new editions) From the preface to the first edition. Paul Erdös liked to talk … Continue reading

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## Mathematicians’s Delight

December’s Book of the Month is Mathematician’s Delight by W. W. Sawyer, Dover Publications 2007 (originally Penguin Books, 1943). This is Sawyer’s first book, and was written with the aim “to dispel the fear of mathematics.” According to the W. … Continue reading

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