Abstracts

Previous issue (2016. Vol. 14, no. 1)

Tätigkeitstheorie: E-Journal for Activity Theoretical Research in Germany

Publisher: Georg Rückriem & Hartmut Giest

ISSN: 2191-6667

Published since 2010 till 2019

Published quarterly

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Open Access Journal

RU In Russian

Tätigkeitstheorie: E-Journal for Activity Theoretical Research in Germany
2019. Vol. 15, no. 1, 8–10
ISSN: 2191-6667

Abstracts ⁷³

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Abstracts. Tätigkeitstheorie: E-Journal for Activity Theoretical Research in Germany, 2019. Vol. 15, no. 1, pp. 8–10.

The solidified calculation by counting, the lack of thinking in the part-whole concept and the disregard for the cardinal meaning of our place-value-numbers still represent the typical features of pupils with arithmetical difficulties. Twenty years of didactic research and innovative practice have failed to solve this core problem of mathematics education.