Aims
This group provides a forum for discussion of the teaching and learning of geometry, with a focus especially on the middle and secondary school and university levels. This Group will have short presentations on, and discussions of, important new trends and developments in research or practice, in geometry teaching and learning, and expositions of outstanding recent contributions to it.The focus of the group will be on theoretical, empirical, or developmental issues related to the following themes:
 - Curriculum studies of new curriculum implementation,
 - An application of geometry on the real world and other subjects
 - The use of instrumentation such as computers in teaching and learning of geometry,
 - Explanation, argumentation and proof in geometry education
 - Spatial abilities and geometric reasoning about two-dimensional and three-dimensional shapes.
 - Teacher preparation in geometry education.
The issues raised will be considered from the historical and epistemological, cognitive and semiotic, educational points of view related to students' difficulties and related to the design of teaching and curricula.

Presentation of the TSG
This group provides a forum for discussion of the teaching and learning of geometry, with a focus especially on the middle and secondary school and university levels. This Group will have short presentations on, and discussions of, important new trends and developments in research or practice, in geometry teaching and learning, and expositions of outstanding recent contributions to it.
The focus of the group will be on theoretical, empirical, or developmental issues related to the following themes:
 - Curriculum studies of new curriculum implementation, challenges and issues, discussion of specific issues such as place and role of vectors and transformations
 - An application of geometry on the real world and other subjects, in particular on mathematics
 - The use of instrumentation such as computers in teaching and learning of geometry,
 - Explanation, argumentation and proof in geometry education
 - Spatial abilities and geometric reasoning about two-dimensional and three-dimensional shapes.
 - Teacher preparation in geometry education.
The issues raised will be considered from the historical and epistemological, cognitive and semiotic, educational points of view related to students' difficulties and related to the design of teaching and curricula.
TSG 10 "Teaching and Learning Geometry" invites the submission of contributions related to the topic of the group. In particular, any contribution addressing questions, problems and issues related to the presentation of the topics listed above can be submitted. The organizers of the Topic Study Group welcome proposals from both researchers and practitioners and encourage contributions from all countries with different economic contexts and cultural backgrounds. Reflecting the diversity of the contributions is a major concern of the group organizers.
The submitted contributions will be reviewed by the organizing team of the Topic Study Group. The accepted contributions will be published on the ICME website before the congress and presented either in oral presentations or in a poster session within the slots of the group. During this session, it is expected that the contributors will be available to discuss their work with the other group members. Presentations related to technology may also include live demonstrations of new technologies. Contributors will also be invited to bring copies of accepted papers, including expanded versions, and CD is to be presented-by-distribution during this session.

Submissions
The first version of submissions can be a short proposal of 3 pages, clearly indicating the aims and the nature of the work, synthesizing its content and results. Authors of accepted submissions will send later a longer version for publication of 7 pages on the Web site of the congress, presenting the aims and the nature of the work, the underlying theoretical frameworks or assumptions, the ways it was carried out or the methods that were used, and provide the results and/or questions coming from the work.
Submissions could report on research work as well as teaching work in classrooms, or on the design of geometry curricula, teaching units or computer geometry environments. They also could address theoretical issues by reporting on advances made in the development of theoretical frameworks or approaches.

Sending submissions
Submissions in their short form (3 pages) or in their final form (7 pages) should be sent by November 30, 2011 either as an email attachment to both chairs of the TSG 10 and through the on-line submission at the Congress website.
Information about acceptance of the submissions with recommendations for the final version will be available by January 15, 2012. Final versions of accepted submissions should be sent by April 10, 2012.

Scheme for paper presentation
Final texts should be 7 pages (Times 12, single-spaced lines) and fit into an outline of 16 cm x 25 cm. Each submission must:
 - be in .pdf file
 - be written in English
 - have a title (bold, capital, centered, Times 16)

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 10 website in the Congress Homepage.

Deadlines
November 30, 2011 On-line submission of proposal
January 15, 2012 Notification of acceptance
April 10, 2012 On-line submission of final draft

Organizers
Co-chairs : Colette Laborde(France) labordec@cabri.com
                 Linquan Wang(China) wanglq@scnu.edu.cn
Team Members : Matthias Ludwig(Germany) ludwig@math.uni-frankfurt.de
                          Nathalie Jakucyn(USA) njakucyn@glenbrook225.org
                          Joong Kweon Lee(Korean) joonglee@dongguk.edu 
                          Elfrida Ralha(Portugal) eralha@math.uminho.pt
Liaison IPC Member : Hee Chan Lew hclew@knue.ac.kr