Structuring and modules for knowledge bases: Motivation for a new model
Antoniou, Grigoris ; Wachsmuth, Ipke ; Brezillon, Patrick (Hrsg.) ; Stefanuk, Vadim (Hrsg.)1993Research problems in mathematics education - III
Behr, Merlyn J. ; Bernard, John ; Briars, Diane ; Bright, George W. ; Threadgill-Sowder, Judy ; Wachsmuth, IpkeIn: For the learning of mathematics, Jg. 4 H. 3, S. 22-231984Number line representations of fractions
Behr, Merlyn J. ; Bright, George W. ; Wachsmuth, Ipke ; Wagner, Sigrid (Hrsg.)1982Tasks to assess children's perception of the size of a fraction
Behr, Merlyn J. ; Post, Thomas R. ; Wachsmuth, Ipke ; Bell, Alan (Hrsg.)1984Estimation and children's concept of rational number size
Behr, Merlyn J. ; Post, Thomas R. ; Wachsmuth, Ipke ; Schoen, Harold L. (Hrsg.)In: Estimation and mental computation, Jg. 1986, S. 103-1111986Rational number learning aids: transfer from continuous models to discrete models
Behr, Merlyn J. ; Wachsmuth, Ipke ; Post, ThomasIn: Focus on learning problems in mathematics, Jg. 10 H. 4, S. 1-181988Construct a sum: a measure of children's understanding of fraction size
Behr, Merlyn J. ; Wachsmuth, Ipke ; Post, Thomas R.In: Journal for research in mathematics education, Jg. 16 H. 2, S. 120-1311985On children's quantitative concept of rational number: construct and estimate the sum
Behr, Merlyn J. ; Wachsmuth, Ipke ; Post, Thomas R. ; Bergeron, Jacques C. (Hrsg.) ; Herscovic, Nicolas (Hrsg.)In: Proceedings of the fifth annual meeting: Montréal Sept. 29 - Oct. 1, 1983 = actes de la cinquième rencontre annuelle / PME-NA, North American Chapter of the International Group for the Psychology of Mathematics Education, Jg. vol. 2, S. 272-2791983Order and equivalence of rational numbers: a clinical teaching experiment
Behr, Merlyn J. ; Wachsmuth, Ipke ; Post, Thomas R. ; Lesh, RichardIn: Journal for research in mathematics education, Jg. 15 H. 5, S. 323-3411984Turning the plates: size perception of rational numbers among 9- and 10-year old children
Behr, Merlyn J. ; Wachsmuth, Ipke ; Vermandel, Alfred (Hrsg.)1982Identifying fractions on number lines
Bright, George W. ; Behr, Merlyn J. ; Post, Thomas R. ; Wachsmuth, IpkeIn: Journal for research in mathematics education, Jg. 19 H. 3, S. 215-2321988Audio-visual interaction with noise pollution data
Börner, Katy ; Wachsmuth, Ipke ; Fehr, Rainer ; Göbel, Martin (Hrsg.) ; Lang, Ulrich (Hrsg.) ; Landauer, Jürgen (Hrsg.) ; Wapler, Matthias (Hrsg.)1998Object recognition with shape prototypes in a 3D construction scenario
Hoffhenke, Martin ; Wachsmuth, Ipke ; Burgard, Wolfram (Hrsg.) ; Christaller, Thomas (Hrsg.) ; Cremers, Armin B. (Hrsg.)1999Selected results from the rational number project
Post, Thomas R. ; Behr, Merlyn J. ; Lesh, Richard ; Wachsmuth, Ipke ; Streefland, Leen (Hrsg.)In: Proceedings of the Ninth International Conference for the Psychology of Mathematics Education, Jg. vol. 1: Individual contributions, S. 342-3511985Order and equivalence of rational numbers: a cognitive analysis
Post, Thomas R. ; Wachsmuth, Ipke ; Lesh, Richard ; Behr, Merlyn J.In: Journal for research in mathematics education, Jg. 16 H. 1, S. 18-361985Textunderstanding in LILOG - sorts and reference objects
Rollinger, Claus-Rainer ; Studer, Rudi ; Uszkoreit, Hans ; Wachsmuth, Ipke ; Brauer, Wilfried (Hrsg.)In: Wissensbasierte Systeme: 2. Internationaler GI-Kongreß, München, 20./21. Okt. 1987, Jg. 155, S. 246-2591987The role of technology in the cognitive development of mathematics learners
Wachsmuth, Ipke ; Becker, Jerry P.In: The journal of mathematical behavior, Jg. 5 H. 2, S. 209-2321986Children's perception of ratios and fractions in Grade 5
Wachsmuth, Ipke ; Behr, Merlyn J. ; Post, Thomas R. ; Hershkowitz, Rina (Hrsg.)1983Communicative rhythm in gesture and speech
Wachsmuth, Ipke ; Braffort, Annelies (Hrsg.) ; Gherbi, Rachid (Hrsg.) ; Gibet, Sylvie (Hrsg.) ; Richardson, James (Hrsg.) ; Teil, Daniel (Hrsg.)1999Assessing fifth grade children's rational number knowledge in a non-verbal application context: the darts game
Wachsmuth, Ipke ; Bright, George W. ; Behr, Merlyn J. ; Post, Thomas R.In: Recherches en didactique des mathématiques, Jg. 7 H. 3, S. 51-741986