Assessing 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. 51-741986Bericht von der 1985er PME-Tagung
Wachsmuth, IpkeIn: Zentralblatt für Didaktik der Mathematik, Jg. 18 H. 2, S. 69-711986Children's perception of ratios and fractions in Grade 5
Wachsmuth, Ipke ; Behr, Merlyn J. ; Post, Thomas R. ; Hershkowitz, Rina (Hrsg.)1983Construct 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. 120-1311985Identifying 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. 215-2321988Letter to the editor of JMB
Wachsmuth, IpkeIn: The Journal of Mathematical Behavior, Jg. 3 H. 2, S. 188-1921982Number line representations of fractions
Behr, Merlyn J. ; Bright, George W. ; Wachsmuth, Ipke ; Wagner, Sigrid (Hrsg.)1982Order 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. 18-361985Order 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. 323-3411984On 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. 272-2791983Inconsistent student behavior in applicational situations of mathematics
Wachsmuth, Ipke ; Streefland, Leen (Hrsg.)In: Proceedings of the Ninth International Conference for the Psychology of Mathematics Education, Jg. vol. 1: Individual contributions, S. 362-3681985Questions on some issues in the psychology of mathematics instruction
Wachsmuth, Ipke ; Wagner, Sigrid (Hrsg.)1982Research 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. 22-231984The 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. 209-2321986