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An analysis of patterns of concepts in terms of lines and circles appeared in a textbook of secondary school mathematics. (Korean. English summary)
Proc. Jangjeon Math. Soc. 16, No. 4, 575-585 (2013).
Classification: G40 D30
61
Exploring advanced Euclidean geometry with GeoGebra. (English)
Classroom Resource Materials. Washington, DC: The Mathematical Association of America (MAA) (ISBN 978-0-88385-784-7/hbk; 978-1-61444-111-3/ebook). xv, 129~p. (2013).
Classification: G15 Reviewer: Ana Soledad Meroño Moreno (Madrid)
62
On an approximation of the number $π$. (O jednom odhade čísla $π$.) (Slovak. English summary)
Šedivý, Ondrej (ed.) et al., Acta Mathematica 16. Zborník príspevkov z XI. nitrianskej matematickej konferencie. Nitra: Constantine The Philosopher University in Nitra, Faculty of Natural Sciences (ISBN 978-80-558-0365-4). Prírodovedec 532, 99-104 (2013).
Classification: F50 G40 N50
63
Gossard’s perspector and projective consequences. (English)
Forum Geom. 13, 169-184 (2013).
Classification: G45 Reviewer: Mowaffaq Hajja (Irbid)
64
“$\sin$, $\cos$, $\tan$ \dots I beg your pardon?” Motivating trigonometry in grade 9. (“$\sin$, $\cos$, $\tan$ \dots wie bitte?” Motivierende Trigonometrie in Klasse 9.) (German)
PM Prax. Math. Sch. 55, No. 54, 27-29 (2013).
Classification: G63 U63
65
Enjoyment of Euclidean planar triangles. (English)
Int. J. Math. Educ. Sci. Technol. 44, No. 6, 905-921 (2013).
Classification: G40 G70
66
Oronce Fine, mathematician and cartographer of King Francis I. (Oronce Fine, mathématicien et cartographe du roi François Ier.) (French)
Quadrature 90, 36-47 (2013).
Classification: A30
67
Hunting for $π$ ‒ by chance! Using random experiments for the solution of a geometric problem. (Auf der Jagd nach $π$ ‒ mit Zufall! Zufallsexperimente zur Lösung eines geometrischen Problems nutzen.) (German)
Mathematik 5 bis 10, No. 24, 28-31 (2013).
Classification: K63 K93 F53 G33 D83
68
The construction of a special equilateral triangle. (English)
Int. J. Math. Educ. Sci. Technol. 44, No. 5, 732-739 (2013).
Classification: G80 G40
69
A triad of circles tangent internally to the nine-point circle. (English)
Forum Geom. 13, 7-10 (2013).
Classification: G45
70
Brilliant ideas of great mathematicians. II. Pythagorean patterns. (Geniale Ideen großer Mathematiker. II. Pythagoreische Muster.) (German)
MNU, Math. Naturwiss. Unterr. 66, No. 6, 330-335 (2013).
Classification: F60 G70
71
Discoveries at circles and ellipses. (Entdeckungen an Kreisen und Ellipsen.) (German)
PM Prax. Math. Sch. 55, No. 50, 30-34 (2013).
Classification: I43 D83 U73
72
Trigonometrie functions through right triangle similarities. (English)
Ohio J. Sch. Math. 2013, No. 68, 33-42 (2013).
Classification: I20 G60 U70 D80
73
A curvature probe for power functions at $x=0$. (Eine Krümmungssonde für Potenzfunktionen bei $x=0$.) (German)
MNU, Math. Naturwiss. Unterr. 66, No. 4, 229-232 (2013).
Classification: I20 I40
74
Circular inclusion. (English)
Coll. Math. J. 44, No. 3, 193-201 (2013).
Classification: G45
75
The Euler line and Feuerbach\rq s point. II. (Die Eulergerade und Feuerbachs Punkt. II.) (German)
Wurzel 47, No. 2, 32-39 (2013).
Classification: G40 Reviewer: Peter Dürr (Linkenheim)
76
Proof: is it really so difficult? (English)
Math. Sch. (Leicester) 42, No. 3, 29-31 (2013).
Classification: E50 Reviewer: Peter Dürr (Linkenheim-Hochstetten)
77
Graphs as models for paths and round-trips in mathematics instruction. (Graphen als Modelle für Wege und Rundreisen im Mathematikunterricht.) (German)
Mathematikunterricht 59, No. 1, 36-41 (2013).
Classification: K30 M90 N60
78
Osculating curves: around the Tait-Kneser theorem. (English)
Math. Intell. 35, No. 1, 61-66 (2013).
Classification: I15 G95 Reviewer: Gabriel Eduard Vilcu (Ploieşti)
79
How do sunflowers construct their spiral patterns? (Wie konstruiert die Sonnenblume ihre Spiralmuster?) (German)
Mathematikunterricht 58, No. 1, 28-33 (2012).
Classification: M60 G70 I30 F60
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Result 61 to 80 of 324 total

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