Media type: E-Article Title: REASONING IN PRIMARY MATHEMATICS – AN ICT-SUPPORTED ENVIRONMENT Contributor: Bezold, Angela; Ladel, Silke Published: Brill Deutschland GmbH, 2014 Published in: Bildung und Erziehung, 67 (2014) 4, Seite 409-418 Language: German DOI: 10.7788/bue-2014-0405 ISSN: 0006-2456 Origination: Footnote: