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Symmetric is optimal ‒ optimal is symmetric. (Symmetrisch ist optimal ‒ optimal ist symmetrisch.) (German)
Monoid 36, No. 125, 33-43 (2016).
Classification: I40
1
Learning area and perimeter with virtual manipulatives. (English)
J. Comput. Math. Sci. Teach. 34, No. 4, 381-393 (2015).
Classification: G33 D73 C43
2
Mathematics at the square. Hundred years, hundred ideas. (Matemáticas en la plaza. Cien años, cien ideas.) (Spanish)
Uno 21, No. 70, 61-67 (2015).
Classification: G32 G22 D42
3
Cannons at sparrows. (English)
Eur. Math. Soc. Newsl. 95, 25-31 (2015).
Classification: A85 G95 F65 Reviewer: Robert Dawson (Halifax)
4
Counting perimeter and dimension: thinking sparked by “Thoughts from an OQT". (English)
Math. Teach. (Derby) 244, 8-9 (2015).
Classification: G43 D73
5
Life on the edge: water striders use geometry to master physics. (English)
Math. Sch. (Leicester) 44, No. 2, 31-33 (2015).
Classification: M60 M50 G30
6
Relating the interior of certain geometric figures to their boundary via differentiation. (English)
Math. Comput. Educ. 49, No. 1, 33-46 (2015).
Classification: I40 I60 G30 G90
7
Calculations with money ‒ in a different way. Circumference and area of coins as a function of the radius. (Rechnen mit Geld ‒ einmal anders. Umfang und Flächeninhalt von Münzen als Funktionen des Radius.) (German)
Mathematik 5 bis 10 30, 32-33 (2015).
Classification: I23 G33 U63
8
Equable isosceles triangles. (English)
SYMmetryplus 56, 6-7 (2015).
Classification: G30 G40
9
Thoughts from an OQT (old qualified teacher). (English)
Math. Teach. (Derby) 241, 38-40 (2014).
Classification: G33 F73
10
Connecting the threads of area and perimeter. (English)
Teach. Child. Math. 20, No. 7, 418-425 (2014).
Classification: G42 G92 M82 D82
11
Using mathematics to design costumes: hat making. (English)
Ohio J. Sch. Math. 70, 27-33 (2014).
Classification: M83 F83 D83
12
Arbeloses of circular arcs and parabolic segments. (Arbelos aus Kreisbögen und Parabelsegmenten.) (German)
MNU, Math. Naturwiss. Unterr. 67, No. 8, 473-477 (2014).
Classification: G40 G74 I54 U74
13
Equable shapes. (English)
SYMmetryplus 2014, No. 55, 7-8 (2014).
Classification: G30 G40 G70 Reviewer: Peter Dürr (Linkenheim)
14
Optimising without differentiating. (Optimieren ohne Abzuleiten.) (German)
Plackner, Eva-Maria (ed.) et al., Grundlagen fördern. Hildesheim: Franzbecker (ISBN 978-3-88120-836-9/pbk). MaMut ‒ Materialien für den Mathematikunterricht 2, 39-48 (2014).
Classification: G30 I60 N60
15
Do students confuse dimensionality and “directionality"? (English)
J. Math. Behav. 36, 166-176 (2014).
Classification: E53 D73 G33
16
Carthago condenda est. (Carthago condenda est.) (German)
Wurzel 48, No. 9-10, 198-204 (2014).
Classification: A30 G30 G40 G90
17
Remarks on the surface area and equality conditions in regular forms. III: Multi-sided prisms. (English)
Nexus Netw. J. 16, No. 2, 487-500 (2014).
Classification: M80 G30 G60
18
Remarks on the surface area and equality conditions in regular forms. II: Quadratic prisms. (English)
Nexus Netw. J. 16, No. 2, 467-485 (2014).
Classification: M80 G30 G60
19
Remarks on the surface area and equality conditions in regular forms. I: Triangular prisms. (English)
Nexus Netw. J. 16, No. 1, 219-232 (2014).
Classification: M80 G30 G60
20
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