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The cone ‒ a special pyramid. Independently developing the formula to calculate a cone’s volume. (Der Kegel ‒ eine spezielle Pyramide. Die Formel zur Berechnung des Kegelvolumens selbstständig erarbeiten.) (German)
Mathematik 5 bis 10 36, 30-33 (2016).
Classification: G33 D83
1
How does a Spidercam move? A technical achievement inspiring not only football fans. (Wie bewegt sich eine Spider-Cam? Eine technische Errungenschaft, die nicht nur Fußballfans begeistert.) (German)
PM Prax. Math. Sch. 58, No. 69, 26-30 (2016).
Classification: M50 G70 U70 P50
2
Pythagoras with cosines. (Pythagoras met cosinussen.) (Dutch)
Euclides 91, No. 6, 18-19 (2016).
Classification: G60
3
Training strategies with Pythagorean problems. (Ein Strategietraining mit Pythagoras-Aufgaben.) (German)
Math. Lehren 33, No. 196, 28-32 (2016).
Classification: G43 D53 D83
4
A supplement to Haga’s theorem. II. (Eine Ergänzung zum Satz von Haga. II.) (German)
Wurzel 50, No. 7, 158-162 (2016).
Classification: G40 G50
5
A supplement to Haga’s theorem. I. (Eine Ergänzung zum Satz von Haga. I.) (German)
Wurzel 50, No. 6, 124-127 (2016).
Classification: G40 G50
6
On an assumption of geometric foundation of numbers. (English)
Int. J. Math. Educ. Sci. Technol. 47, No. 3, 395-407 (2016).
Classification: F50 G40
7
Modification of the theorems by Thales and Pythagoras. (Modifikation der Sätze von Thales und Pythagoraster.) (German)
MNU J. 69, No. 2, 120-122 (2016).
Classification: G44 I24 I44
8
Rabbits and beautiful rectangles. Learning stations following the “sandwich" principle all about the golden section. (Kaninchen und schöne Rechtecke. Eine Stationenarbeit im “Sandwichprinzip" rund um den Goldenen Schnitt.) (German)
Mathematik 5 bis 10 34, 30-33 (2016).
Classification: D43 D83 F63 I33 G43 H33
9
Prospective teachers’ conceptions of proof comprehension: revisiting a proof of the Pythagorean theorem. (English)
Int. J. Sci. Math. Educ. 14, No. 4, 777-803 (2016).
Classification: E50 C30 G40
10
Two important heuristic strategies: reformulation and generalization of problems. (English)
Billich, Martin (ed.), Mathematica V. Proceedings of the Polish-Czech-Slovak mathematical conference, Catholic University Ružomberok, Spišská Kapitula, Slovakia, June 3‒5, 2015. Ružomberok: Verbum, Catholic University in Ružomberok Press (ISBN 978-80-561-0296-1/pbk). Scientific Issues, 43-50 (2015).
Classification: D50 G40
11
Production of knowledge about the Pythagorean theorem in computerized environment. (Produção de conhecimento acerca do teorema de Pitagóras em ambiente informatizado.) (Portuguese. English summary)
Amado, Nélia (ed.) et al., Proceedings of the 12th international conference on technology in mathematics teaching, ICTMT 12. Faro: University of Algarve (ISBN 978-989-8472-68-7). 737-744 (2015).
Classification: G40 U70
12
Just an exercise on the Pythagorean theorem? (Zomaar een oefening op de stelling van Pythagoras?) (Dutch)
Uitwiskeling 31, No. 4, 6-8 (2015).
Classification: G40
13
What kind of areas is the intersecting chords theorem about? Discovery learning in teacher education. (Um welche Flächen geht es beim Sehnensatz? Entdeckendes Lernen in der Lehramtsausbildung.) (German. English summary)
Math. Didact. 38, 274-301 (2015).
Classification: D39 G19 A30
14
Experimenting with paper. Paper folding in mathematics lessons. (Experimentieren mit Papier. Papierfalten im Mathematikunterricht.) (German)
PM Prax. Math. Sch. 57, No. 65, 41-44 (2015).
Classification: U63 G43 D83 D43
15
A comprehensive Pythagorean theorem for all dimensions. (English)
Am. Math. Mon. 122, No. 2, 164-168 (2015).
Classification: H65 G95 G45 Reviewer: Péter E. Frenkel (Budapest)
16
Further remarks on a research agenda for WFNMC: research into the nature and characterization of geometric thinking based on students’ solutions of competition problems. (English)
Math. Compet. 28, No. 1, 42-56 (2015).
Classification: D50 E20 D20 B60
17
Pythagoras via Cavalieri. (English)
Math. Mag. 88, No. 3, 214-216 (2015).
Classification: G40
18
Explaining. What? How? Why? (Erklären. Was? Wie? Warum?) (German)
PM Prax. Math. Sch. 57, No. 64, 2-9 (2015).
Classification: C70 C49 C50 C60 D40
19
Dialogue-based activities and manipulatives to engage liberal arts majors in mathematics. (English)
PRIMUS, Probl. Resour. Issues Math. Undergrad. Stud. 25, No. 1, 1-12 (2015).
Classification: D35 D45 G45 M35 K55 N65
20
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