This study addresses teachers' activity when working with digital technologies (DT) in their classrooms. We build upon a model that considers teaching as managing "open dynamic situations." Within the model, teachers' activity is viewed as diagnosing students' mathematical activity, managing uncertainties due to the characteristics of…

This research was conducted in order to determine the opinions of preschool teachers on education with a mixed age group in preschool education. In the research, the case study method, one of the qualitative research methods, was used in order to examine the opinions of the teachers in detail. The study group of the research consists of 12…

The opinions of mathematics teachers about using mathematical modeling (MM) in daily life problems and their use of MM in solving a daily life problem were examined within the scope of the graduate-level MM course in this study. The research was designed as a case study. Participants are five mathematics teachers selected by the purposive sampling…

The interpretation and implementation of ideas about the internationalisation of curricula (IoC) are complicated and multi-faceted. The complex and diverse perspectives on IoC reflect two concepts: "internationalisation" and "curriculum". These concepts embody contrasting perspectives on issues, including the competition-type…

This descriptive case study is a qualitative investigation into the perceptions of tenth grade students who experienced a ninth-grade transitional model high school academy within a large PreK-12 suburban school district. Specifically, this study provided the opportunity to examine the success of one Ninth Grade Academy, identify areas of concern…

A recent discussion involves the elaboration on possible design principles for sequences of tasks. This paper builds on three principles, as described by Bokhove and Drijvers (2012a). A model with ingredients of crises, feedback and fading of sequences with near-similar tasks can be used to address both procedural fluency and conceptual…

Empirical evidence on the way in which expert designers from different domains cognitively connect their internal processes with external resources is presented in the context of an extended cognition model. The article focuses briefly on the main trends in the extended design cognition theory and in particular on recent trends in information…

This case study started when I noticed that my ESL (English as a Second Language) students from all over the world had a hard time not only adjusting their writing/textual production to the language but also to the organizational structures of the paragraph I was presenting to them in my intermediate writing class. Considering that my students…

The paper selects over 20 online courses and analyses the subjects, organization, the way to show the content of the courses, the use of media, and design of the teaching in the case study of Chinese popular MOOC platform. On this basis, the paper summarizes the principles of curriculum design and design models in MOOC environment, such as…

This paper deals with the nature and the level of difficulty of teaching and learning physics in the first year of undergraduate engineering schools in France. Our case study is based on a survey regarding a classic and basic question in applied physics, and which was conducted with a group of second-year students in a post-baccalaureate 1…

Sociocultural theory is increasingly popular as a paradigm for research in education. A recent member in this family of theories is introduced--cultural-historical activity theory (CHAT)--that shows much promise to complement and invigorate the field of educational change, a large, multi-faceted, and persistent problematic. In particular,…

These proceedings contain the papers of the IADIS International Conference on Cognition and Exploratory Learning in the Digital Age (CELDA 2013), October 22-24, 2013, which has been organized by the International Association for Development of the Information Society (IADIS), co-organized by The University of North Texas (UNT), sponsored by the…

The IADIS CELDA 2012 Conference intention was to address the main issues concerned with evolving learning processes and supporting pedagogies and applications in the digital age. There had been advances in both cognitive psychology and computing that have affected the educational arena. The convergence of these two disciplines is increasing at a…

The first volume of the 29th annual conference of the International Group for the Psychology of Mathematics Education contains plenary lecture and research forum papers as listed below. Short oral communications papers, poster presentations, brief summaries of discussion groups, and working sessions are also included in the volume. The plenary…