Media type: E-Article Title: The development of flexibility in equation solving Contributor: Star, Jon R.; Seifert, Colleen Published: Elsevier BV, 2006 Published in: Contemporary Educational Psychology, 31 (2006) 3, Seite 280-300 Language: English DOI: 10.1016/j.cedpsych.2005.08.001 ISSN: 0361-476X Origination: Footnote: