Understanding ACT-R - an Outsider's Perspective

The ACT-R theory of cognition developed by John Anderson and colleagues endeavors to explain how humans recall chunks of information and how they solve problems. ACT-R also serves as a theoretical basis for "cognitive tutors", i.e., automatic tutoring systems that help students learn mathematics, computer programming, and other subjects. The official ACT-R definition is distributed across a large body of literature spanning many articles and monographs, and hence it is difficult for an "outsider" to learn the most important aspects of the theory. This paper aims to provide a tutorial to the core components of the ACT-R theory

Generating socially appropriate tutorial dialog

Analysis of student-tutor coaching dialogs suggest that good human tutors attend to and attempt to influence the motivational state of learners. Moreover, they are sensitive to the social face of the learner, and seek to mitigate the potential face threat of their comments. This paper describes a dialog generator for pedagogical agents that takes motivation and face threat factors into account. This enables the agent to interact with learners in a socially appropriate fashion, and foster intrinsic motivation on the part of the learner, which in turn may lead to more positive learner affective states

Identifying trades tutors' and institutions' perceptions of tutors' roles within the ITP sector : a thesis presented in partial fulfilment of the requirements for the degree of Master of Education in Adult Education at Massey University, Palmerston North, New Zealand

Since 1984 tertiary education institutions have been subject to progressive and far-reaching change. Much of this change has been shaped by neo-liberalist agendas which espouse accountability, efficiency, responsiveness, professionalism and managerialism. This thesis looks at how these themes have shaped or influenced managerial and tutorial perceptions of tutors' operational roles, responsibilities and performance within a selection of contemporary Institutes of Technology and Polytechnics (ITP) teaching environments. Analysis of the research identifies that scant or poorly prepared institutional documentation around tutorial roles and responsibilities has contributed to uncertainty or confusion, and consequently to individuals adapting their teaching roles to suit themselves. It has also been identified that managers appointed to the pivotal role of Head of School are stretched in their ability to cope with the demands that are placed on them. This thesis suggests that the increasing responsibilities they carry for managing tutorial staff have contributed to a breakdown in workload planning and performance management processes. Managers acknowledge that further work needs to be done in defining tutors' roles, responsibilities and performance. But such work presupposes the question: how do managers and tutors perceive tutorial roles in today's ITP teaching environment? Research on this key question and associated issues provides the basis for this thesis

A multi-modal study into students’ timing and learning regulation: time is ticking

Purpose This empirical study aims to demonstrate how the combination of trace data derived from technology-enhanced learning environments and self-response survey data can contribute to the investigation of self-regulated learning processes. Design/methodology/approach Using a showcase based on 1,027 students’ learning in a blended introductory quantitative course, the authors analysed the learning regulation and especially the timing of learning by trace data. Next, the authors connected these learning patterns with self-reports based on multiple contemporary social-cognitive theories. Findings The authors found that several behavioural facets of maladaptive learning orientations, such as lack of regulation, self-sabotage or disengagement negatively impacted the amount of practising, as well as timely practising. On the adaptive side of learning dispositions, the picture was less clear. Where some adaptive dispositions, such as the willingness to invest efforts in learning and self-perceived planning skills, positively impacted learning regulation and timing of learning, other dispositions such as valuing school or academic buoyancy lacked the expected positive effects. Research limitations/implications Due to the blended design, there is a strong asymmetry between what one can observe on learning in both modes. Practical implications This study demonstrates that in a blended setup, one needs to distinguish the grand effect on learning from the partial effect on learning in the digital mode: the most adaptive students might be less dependent for their learning on the use of the digital learning mode. Originality/value The paper presents an application of embodied motivation in the context of blended learning

The Dynamics of Students' Behaviors and Reasoning during Collaborative Physics Tutorial Sessions

We investigate the dynamics of student behaviors (posture, gesture, vocal register, visual focus) and the substance of their reasoning during collaborative work on inquiry-based physics tutorials. Scherr has characterized student activity during tutorials as observable clusters of behaviors separated by sharp transitions, and has argued that these behavioral modes reflect students' epistemological framing of what they are doing, i.e., their sense of what is taking place with respect to knowledge. We analyze students' verbal reasoning during several tutorial sessions using the framework of Russ, and find a strong correlation between certain behavioral modes and the scientific quality of students' explanations. We suggest that this is due to a dynamic coupling of how students behave, how they frame an activity, and how they reason during that activity. This analysis supports the earlier claims of a dynamic between behavior and epistemology. We discuss implications for research and instruction.Comment: 4 pages, PERC 200

Using dialogue to learn math in the LeActiveMath project

We describe a tutorial dialogue system under development that assists students in learning how to differentiate equations. The system uses deep natural language understanding and generation to both interpret students ’ utterances and automatically generate a response that is both mathematically correct and adapted pedagogically and linguistically to the local dialogue context. A domain reasoner provides the necessary knowledge about how students should approach math problems as well as their (in)correctness, while a dialogue manager directs pedagogical strategies and keeps track of what needs to be done to keep the dialogue moving along.

Persistent andragogical patterns across the generations: From university tutorial classes to postgraduate online education

The concept of design patterns in education raises the question of whether their validity can persist over a period of time or whether social and technological change means that yesterday’s virtues are today’s irrelevancies. Many see e-learning as something which is the latest and greatest form of education, possibly one that has made previous forms obsolete. However, when we look beyond the technology to the desired pedagogy, how much has radically changed? This paper compares two examples of how adults have been educated on a part-time basis in Britain; examples which are separated by 100 years. Because adults are involved, we should more properly talk of andragogy rather than pedagogy. It compares elements of University Tutorial Classes, which started in 1908 as a university outreach programme to deliver undergraduate level education to ordinary working people, with key features of an online Master’s degree programme started in the 21st century. The University of Liverpool has been associated with both initiatives, and therefore provides a useful focus for comparison. On the face of it, the two initiatives could not be more different. However, if we strip away the differences in circumstances, motivation and technology, we find that the andragogical approach is remarkably similar. The same basic desirable elements are present

Usability evaluation of digital libraries: a tutorial

This one-day tutorial is an introduction to usability evaluation for Digital Libraries. In particular, we will introduce Claims Analysis. This approach focuses on the designers’ motivations and reasons for making particular design decisions and examines the effect on the user’s interaction with the system. The general approach, as presented by Carroll and Rosson(1992), has been tailored specifically to the design of digital libraries. Digital libraries are notoriously difficult to design well in terms of their eventual usability. In this tutorial, we will present an overview of usability issues and techniques for digital libraries, and a more detailed account of claims analysis, including two supporting techniques – simple cognitive analysis based on Norman’s ‘action cycle’ and Scenarios and personas. Through a graduated series of worked examples, participants will get hands-on experience of applying this approach to developing more usable digital libraries. This tutorial assumes no prior knowledge of usability evaluation, and is aimed at all those involved in the development and deployment of digital libraries

Building models of learning and expertise with CHREST

CHREST (Chunk Hierarchy and REtrieval STructures) is a complete computational architecture implementing processes of learning and perception. CHREST models have successfully simulated human data in a variety of domains, such as the acquisition of syntactic categories, expertise in programming and in chess, concept formation, implicit learning, and the acquisition of multiple representations in physics for problem solving. In this tutorial, we describe the learning, perception and attention mechanisms within CHREST as well as key empirical data captured by CHREST models. Apart from the theoretical material, this tutorial also introduces participants to an implementation of CHREST and its use in a variety of domains. Material and examples are provided so participants can adapt and extend the CHREST architecture