Tasks to assess children's perception of the size of a fraction
Behr, Merlyn J. ; Post, Thomas R. ; Wachsmuth, Ipke ; Bell, Alan (Ed.)1984Estimation and children's concept of rational number size
Behr, Merlyn J. ; Post, Thomas R. ; Wachsmuth, Ipke ; Schoen, Harold L. (Ed.)In: Estimation and mental computation, Vol. 1986, page 103-1111986Construct 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, Vol. 16 Issue 2, page 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. (Ed.) ; Herscovic, Nicolas (Ed.)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, Vol. vol. 2, page 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, Vol. 15 Issue 5, page 323-3411984Identifying fractions on number lines
Bright, George W. ; Behr, Merlyn J. ; Post, Thomas R. ; Wachsmuth, IpkeIn: Journal for research in mathematics education, Vol. 19 Issue 3, page 215-2321988Selected results from the rational number project
Post, Thomas R. ; Behr, Merlyn J. ; Lesh, Richard ; Wachsmuth, Ipke ; Streefland, Leen (Ed.)In: Proceedings of the Ninth International Conference for the Psychology of Mathematics Education, Vol. vol. 1: Individual contributions, page 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, Vol. 16 Issue 1, page 18-361985Children's perception of ratios and fractions in Grade 5
Wachsmuth, Ipke ; Behr, Merlyn J. ; Post, Thomas R. ; Hershkowitz, Rina (Ed.)1983Assessing 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, Vol. 7 Issue 3, page 51-741986