Aims
The group's focus is on individuals' elementary mathematical representations and understandings with a special interest in the way these aspects of cognition develop through activities in and out of school. The mathematical domains of concern include whole numbers, integers, and rational numbers as well as representations related to each of these domains.
A related interest of the group is socio-cultural analyses. These analyses would include the ways that mathematics (including mathematical argumentation, representations, problem solving, teaching-learning interactions) is constituted in everyday practices as well as the interplay between developing mathematical understanding and representations in and out of school.
The group encourages cross-disciplinary contributions, including (but not limited to) participation by educational researchers, mathematics educators, developmental psychologists, and cultural anthropologists.

Guidelines for submission
The organizing team welcomes contributions to the topics outlined above as well as related issues. Participants are requested to submit 1500-2000 word proposals not later than November 30, 2011 both via e-mail to the team chairs and through the on-line submission system at the Congress Website. The proposals should indicate name(s) of the author(s) and their location (town and country, school or institution) and contact details.
The members of the organizing group will review each proposal, and the reviews will be returned by January 15, 2012. For accepted papers, the final versions must be returned by April 10, 2012 (and may be longer than the 1500-2000 word proposal limit). Any question that you might have, please send an email to any member of the group.

On-line submission
Go to<My Page> at the first page of the Congress Homepagehttp://icme12.org or press <Submit your proposal> button on TSG 7 website in the Congress Homepage.

Deadlines
November 30, 2011 Proposal submission (1500-2000 words)
January 15, 2012 Notification of acceptance
April 10, 2012 Submission of Final Draft

Organizers 
Co-chairs : Joana Brocardo(Portugal) joana.brocardo@ese.ips.pt
                 Geoffrey Saxe(USA) saxe@berkeley.edu