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Result 61 to 80 of 326 total

A variant of a theorem by William Wallace. (Variante eines Satzes von William Wallace.) (German)
IBDG, Inf.bl. Geom. 31, No. 1, 21-22 (2012).
Classification: G40
61
Spinning pegs and Varignon’s friends. (English)
Math. Sch. (Leicester) 41, No. 2, 23-25 (2012).
Classification: G40
62
Exploring quadrilaterals through flexible approaches. (English)
Math. Teach. (Reston) 106, No. 4, 288-294 (2012).
Classification: G30 D50
63
Napoleon’s theorem for convex quadrilaterals. (Il teorema di Napoleone per i quadrilateri convessi.) (Italian)
Archimede 64, No. 3, 139-144 (2012).
Classification: G45 I35 F65 Reviewer: Claudio Bernardi (Roma)
64
On the centroid of quadrilateral areas. (Zum Flächenschwerpunkt für Vierecke.) (German)
MNU, Math. Naturwiss. Unterr. 65, No. 8, 464-465 (2012).
Classification: G40 G70
65
The plane table. (Der Messtisch.) (German)
PM Prax. Math. Sch. 54, No. 47, 13-20 (2012).
Classification: U63 M53 G43 D43 F73 G33
66
Mathematics in church architecture. (Die Kirche im Dorf lassen ‒ Mathematik an Kirchenbauten.) (German)
PM Prax. Math. Sch. 54, No. 47, 27-32 (2012).
Classification: M83 G13 D43
67
Brahmagupta. (English)
SYMmetryplus, No. 47, 5-6 (2012).
Classification: A30 Reviewer: Peter Dürr (Linkenheim)
68
Paper interfaces for learning geometry. (English)
Ravenscroft, Andrew (ed.) et al., 21st century learning for 21st century skills. 7th European conference of technology enhanced learning, EC-TEL 2012, Saarbrücken, Germany, September 18‒21, 2012. Proceedings. Berlin: Springer (ISBN 978-3-642-33262-3/pbk). Lecture Notes in Computer Science 7563, 37-50 (2012).
Classification: U70 G40 R20
69
Vectorial proof of an inequality for quadrilaterals. (Vektorieller Beweis einer Ungleichung für Vierecke.) (German)
Wurzel 46, No. 9-10, 223 (2012).
Classification: G70 G40
70
Proof without words: Ptolemy’s theorem. (English)
Coll. Math. J. 43, No. 5, 386-386 (2012).
Classification: G40
71
A new property of circumscribed quadrilateral. (English)
Int. J. Geom. 1, No. 2, 61-64 (2012).
Classification: G40
72
Analogy and dynamic geometry system used to introduce three-dimensional geometry. (English)
Int. J. Math. Educ. Sci. Technol. 43, No. 6, 818-830 (2012).
Classification: G40 U70
73
Mathematical tasks as tools for research on the management of mathematics instruction: an example from geometry. (Las tareas matemáticas como instrumentos en la investigación de los fenómenos de gestión de la instrucción: un ejemplo en geometría.) (Spanish. English summary; Portuguese summary; French summary)
Av. Investig. Educ. Mat., No. 1, 5-22 (2012).
Classification: G40 D40 D50
74
Construction of quadrilaterals with perpendicular diagonals. (Konstruktion von Vierecken mit zueinander senkrechten Diagonalen.) (German)
Wurzel 46, No. 7, 163-165 (2012).
Classification: G40
75
Paper patterns. I: With metric paper. (English)
Math. Sch. (Leicester) 40, No. 5, 29-33 (2011).
Classification: A20 G90 G40
76
Bridges in the interplay between theory and application. (Brücken im Wechselspiel zwischen Theorie und Anwendung.) (German)
Mathematikunterricht 57, No. 4, 4-21 (2011).
Classification: M50
77
Self-correcting problems at the tetrahedron. (Selbstkorrigierende Aufgaben am Tetraeder.) (German)
IBDG, Inf.bl. Geom. 30, No. 2, 27-29 (2011).
Classification: G40 G70
78
Investigating the problem field of non-convex quadrilaterals. (English)
Szűcs, Kinga (ed.), Problem solving in mathematics education. Problem solving learning ‒ possibilities to measure the problem solving performance. Proceedings of the 12th ProMath conference, Jena, Germany, September 10‒12, 2010. Münster: WTM-Verlag (ISBN 978-3-942197-16-8). Ars Inveniendi et Dejudicandi 1, 63-73 (2011).
Classification: G43 G44
79
A new engine for schools: The flexible scheduling paradigm. (English)
J. Recreat. Math. 36(2007), No. 3, 3-18 (2011).
Classification: D30
80

Result 61 to 80 of 326 total

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