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Dag Oskar Madsen

PhD in Mathematics (NTNU, Trondheim, Norway 2002)

FIDE Master in Chess

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  • Member for 6 years, 4 months
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  • Last seen Jun 29 at 7:14

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52 Unique candidate that fails Sep 21 '14
18 How do you explain why perpendicular lines have negative reciprocated slopes? Sep 30 '15
16 Where does the word “roots” come from when talking about zeros Sep 30 '14
13 How to think mathematically? Oct 6 '15
12 Is there a literature database like MathSciNet for Mathematics Education? Apr 16 '16
10 What is a good prototypical example of a construction that is not well-defined? Aug 22 '14
9 Greatest common divisor applications Mar 12 '17
9 Real-world examples of more “obscure” geometric figures Apr 1 '15
9 What is the difference between “numeracy” and “number sense”? May 27 '17
7 Job boards for university positions in Math Education? Sep 4 '16
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