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Blossoming below zero. Blossom tasks on negative numbers. (Blütenbildung bei Minusgraden. Blütenaufgaben zu negativen Zahlen.) (English)
Mathematik 5 bis 10 33, 18-21 (2015).
Classification: F43 D53
21
Flipping up the deepest depth. Negative numbers in geography lessons. (Die tiefste Tiefe nach oben klappen. Negative Zahlen im Fach Geographie.) (English)
Mathematik 5 bis 10 33, 16-17 (2015).
Classification: F43 D83 M53
22
Populating the number line. Students “invent" calculations with integers. (Die Bevölkerung der Zahlengeraden. Schülerinnen und Schüler “erfinden" das Rechnen mit den ganzen Zahlen.) (English)
Mathematik 5 bis 10 33, 12-15 (2015).
Classification: F43 D83
23
That is even less than nothing! Determining previous experience with the topic of “negative numbers". (Das ist ja weniger als nichts! Vorerfahrungen zum Thema “Negative Zahlen" ermitteln.) (English)
Mathematik 5 bis 10 33, 8-11 (2015).
Classification: F43 D73 U63
24
Rather negative. Playing with negative numbers. (Ziemlich negative. Spielen mit negativen Zahlen.) (English)
Mathematik 5 bis 10 33, 6-7 (2015).
Classification: F43 U63
25
Praxemic extensions related to sets of numbers: from complex numbers to integers. (Extensions praxémiques liées aux ensembles de nombres: des complexes aux relatifs.) (French. English summary)
Ann. Didact. Sci. Cogn. 20, 9-46 (2015).
Classification: F40 F50
26
Is God a mathematician? (English)
Philos. Math. Educ. J. 29, 7 p., electronic only (2015).
Classification: E20 D20
27
A critical analysis of teaching and learning negative numbers. (English)
Philos. Math. Educ. J. 29, 13 p., electronic only (2015).
Classification: D20 F40 M10 E40
28
A number-theoretical problem. (O problemă de teoria numerelor.) (Romanian. English summary)
Gaz. Mat., Ser. B 120, No. 3, 118-120 (2015).
Classification: F60
29
Learning to “see” less than nothing: putting perceptual skills to work for learning numerical structure. (English)
Cogn. Instr. 33, No. 2, 154-197 (2015).
Classification: F42
30
Pythagorean triangle and Pythagorean boxes. (Triángulos Pitagóricos y cajas Pitagóricas.) (Spanish)
Rev. Educ. Mat. 30, No. 2, 24-39 (2015).
Classification: F60
31
Conducting classroom design research with teachers. (English)
ZDM, Math. Educ. 47, No. 6, 905-917 (2015).
Classification: D20 D40 F40
32
Algorithmic number theory. (Algorithmische Zahlentheorie.) 2nd revised and extended ed. (German)
Heidelberg: Springer Spektrum (ISBN 978-3-658-06539-3/pbk; 978-3-658-06540-9/ebook). viii, 314~p. (2015).
Classification: F65 Reviewer: Werner Kleinert (Berlin)
33
German Federal Mathematics Competition 2013. Problems of the first round. (Bundeswettbewerb Mathematik 2015. Aufgaben der ersten Runde.) (German)
Wurzel 49, No. 1, 6-7 (2015).
Classification: U40 Reviewer: Peter Dürr (Linkenheim)
34
Doubly positive. (English)
Math. Sch. (Leicester) 44, No. 2, 34-35 (2015).
Classification: F40 H20 H40
35
A return to primary school mathematics. (English)
Math. Sch. (Leicester) 44, No. 2, 17-20 (2015).
Classification: F30 F40 E50 F50 E60
36
The how and why of another mathematical gem. (English)
Math. Sch. (Leicester) 44, No. 1, 32-33 (2015).
Classification: F60 H20
37
‘Negative of my money, positive of her money’: secondary students’ ways of relating equations to a debt context. (English)
Int. J. Math. Educ. Sci. Technol. 46, No. 2, 234-249 (2015).
Classification: F42 F43 F92 F93 H32 H33
38
Division of integers. (Division dans les entiers.) (French)
Losanges 27, 57-59 (2014).
Classification: F60
39
Finding sums of positive consecutive integers for any given total. (English)
Math. Teach. (Reston) 107, No. 8, 632-635 (2014).
Classification: F60
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Result 21 to 40 of 486 total

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