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Producing polytopes with a 3D-printer. Spatial thinking and operating with coordinates in grade 7. (Polytope mit dem 3-D-Drucker herstellen. Räumliches Denken und Operieren mit Koordinaten in Klasse 7.) (German)
PM Prax. Math. Sch. 58, No. 69, 31-34 (2016).
Classification: G43 G73 U73
1
Using Surfer to investigate algebraic surfaces. (English)
Math. Teach. (Reston) 109, No. 3, 221-226 (2015).
Classification: G73 H73 I63 U73
2
Real and virtural helixes for the introduction of trigonometric functions. (English)
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). 235-243 (2015).
Classification: U73 G73 I23
3
Sections through cubes, spheres and cones. (Schnitte durch Würfel, Kugel und Kegel.) (German)
Math. Lehren 32, No. 190, 26-31 (2015).
Classification: G44 G74 D84 G43 G73 D83 Reviewer: Renate Stürmer (Zweibrücken)
4
Find the distance: no formula necessary. (English)
Math. Teach. Middle Sch. 19, No. 9, 564-567 (2014).
Classification: G43 G73
5
Study on the learning of quadratic equation through proportion in a dynamic environment. (English)
Lindmeier, Anke M. (ed.) et al., Proceedings of the 37th conference of the International Group for the Psychology of Mathematics Education “Mathematics learning across the life span", PME 37, Kiel, Germany, July 28‒August 2, 2013. Vol. 3. Kiel: IPN‒Leibniz Institute for Science and Mathematics Education at the University of Kiel (ISBN 978-3-89088-289-5). 249-256 (2013).
Classification: H33 U73 G73
6
Area calculations with GPS data. A project in grade 6 on the promotion of giftedness. (Flächenberechnung mit GPS-Daten. Ein Projekt zur Begabtenförderung in der Stufe 6.) (German)
PM Prax. Math. Sch. 55, No. 53, 25-27 (2013).
Classification: G33 U73 G73
7
Getting to the point. (Auf den Punkt gebracht.) (German)
PM Prax. Math. Sch. 55, No. 49, 17-26 (2013).
Classification: G23 G43 G73 M13
8
If bees could read maps. Using coordinates and angles to communicate the position of locations. (Wenn Bienen Landkarten lesen könnten. Mit Koordinaten und Winkel die Lage von Orten kommunizieren.) (German)
PM Prax. Math. Sch. 55, No. 49, 9-16 (2013).
Classification: G23 G43 G73 M53 M63
9
Make 2D out of 3D. Perspective drawing of solids. (Aus 3D mach 2D. Perspektivisches Zeichnen von Körpern.) (German)
Mathematik 5 bis 10, No. 22, 24-27 (2013).
Classification: G73 G43
10
Coordinate method. (Metoda koordinata.) (Serbian)
Nast. Mat. 57, No. 1-2, 12-15 (2012).
Classification: G73 G43 Reviewer: Zoran Kadelburg (Beograd)
11
A problem to be discussed ‒ a trapezium with two right angles and perpendicular diagonals. (Un problema da discutere ‒ un trapezio rettangolo con le diagonali perpendicolari.) (Italian)
Archimede 64, No. 3, 145-149 (2012).
Classification: A30 G73 G43 Reviewer: Claudio Bernardi (Roma)
12
Mathematics in the townscape. (Mathematik im Stadtbild.) (German)
Mathematikunterricht 58, No. 3, 57-60 (2012).
Classification: M80 G73 U73 R63
13
The concept of a function in connection with parametric representations. (Der Funktionsbegriff im Zusammenhang mit Parameterdarstellungen.) (German)
Mathematikunterricht 58, No. 3, 13-16 (2012).
Classification: I23 G73 G63 D33 Reviewer: Peter Dürr (Linkenheim)
14
On integration of the three basic isometric transformations (translation, reflection and rotation) with Euclidean plane geometry in Chinese junior middle school’s traditional plane geometry courses. (Chinese. English summary)
J. Math. Educ. (Tianjin) 21, No. 4, 95-99 (2012).
Classification: G73 G43 G53
15
Random points and parametric representations. (Zufallspunkte und Parameterdarstellungen.) (German)
Mathematikunterricht 58, No. 3, 55-56 (2012).
Classification: G73 K93 U73 M80 R63
16
Introduction into the parametric representation of circles ‒ grade 10. (Einführung der Parameterdarstellung des Kreises ‒ Klasse 10.) (German)
Mathematikunterricht 58, No. 3, 47-49 (2012).
Classification: G73 G63 I23 D43 Reviewer: Peter Dürr (Linkenheim)
17
From the house of Santa Claus and its reflections in a line to the parametric representation of curves and their inversion. (Vom Haus des Nikolaus und dessen Achsenspiegelung zur Parameterdarstellung von Kurven und deren Umkehrungen.) (German)
Mathematikunterricht 58, No. 3, 40-46 (2012).
Classification: G73 G53 I23 D83
18
Parabolas in parametric representation ‒ horizontal and inclined throw. (Parabeln in Parameterdarstellung ‒ waagerechter und schräger Wurf.) (German)
Mathematikunterricht 58, No. 3, 35-39 (2012).
Classification: G73 M53 I23
19
Two ships meet ‒ version 2: introducing straight lines in parametric form. (Zwei Schiffe begegnen sich ‒ Version 2: Einführung für Geraden in Parameterform.) (German)
Mathematikunterricht 58, No. 3, 30-34 (2012).
Classification: G73 M53 I23 D83
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