This paper reviews the literature linking ICT to teaching thinking skills and advocates a new dialogic framework which has implications for practice. The main conceptualisations of the relationship between ICT and teaching thinking are described as, the computer as tutor, the computer as cognitive tool and the computer as support for collaborative learning. The computer supported collaborative ...

Game-based learning environments hold great promise for supporting computer science learning. The ENGAGE project is building a game-based learning environment for middle school computational thinking and computer science principles, situated within mathematics and science curricula. This paper reports on a pilot study of the ENGAGE curriculum and gameplay elements, in which pairs of middle scho...

We present a critical perspective on the current state of research educational dialogues, within and without Computer-Supported Collaborative Learning environments, in order to propose perspectives intersection these two domains. Our main proposal is that integrate different types human or machine analyzed data over timescales, it necessary do so theorization object study its units analysis. St...

For several years, we have been studying collaborative, dialogue-based interaction between humans and between humans and a computer system as part of the TRAINS project [Allen and Schubert, 1991]. The goal of the project is an intelligent planning assistant that is conversationally proficient in natural language and that will assist a human manager (the user) formulate and execute plans. The do...

This study analyzes 39 Atlantic and seven Pacific benthic δC records to characterize obliquity and precession responses in Atlantic overturning since 3 Ma. Regional benthic δC stacks are also analyzed. A major transition in orbital responses is observed at 1.5–1.6 Ma coincident with the first glacial shoaling of Northern Component Water. Since ∼1.5 Ma, the phases of Atlantic benthic δC records ...

Identifying effective tutorial dialogue strategies is a key issue for intelligent tutoring systems research. Human-human tutoring offers a valuable model for identifying effective tutorial strategies, but extracting them is a challenge because of the richness of human dialogue. This article addresses that challenge through a machine learning approach that 1) learns tutorial modes from a corpus ...

January 2007 / Vol. 57 No. 1 • BioScience 55 I human populations and per capita resource consumption have engendered pressing problems that threaten ecosystem function, ecosystem services, the sustainability of production, and the health and well-being of human populations. Solutions to these problems require the expertise of biologists, but their complexity necessitates integrated efforts invo...

In dialogues in which both agents are autonomous, each agent deliberates whether to accept or reject the contributions of the current speaker. A speaker cannot simply assume that a proposal or an assertion will be accepted. However, an examination of a corpus of naturally-occurring problem-solving dialogues shows that agents often do not explicitly indicate acceptance or rejection. Rather the s...

One way to begin a negotiation subdialogue is to express doubt at a proposition. However, expressions of doubt occur in a variety of forms, each of which conveys information about the nature of the doubt that is important for the subsequent resolution of the con ict. This paper presents our work on realizing expressions of doubt appropriately in natural language dialogues.

In this paper we investigate the role of reflection in simulation based learning by manipulating two independent factors that each separately lead to significant learning effects, namely whether students worked alone or in pairs, and what type of support students were provided with. Our finding is that in our simulation based learning task, students learned significantly more when they worked i...