Tanja Heck


2023

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Using Learning Analytics for Adaptive Exercise Generation
Tanja Heck | Detmar Meurers
Proceedings of the 18th Workshop on Innovative Use of NLP for Building Educational Applications (BEA 2023)

Single Choice exercises constitute a central exercise type for language learning in a learner’s progression from mere implicit exposure through input enhancement to productive language use in open exercises. Distractors that support learning in the individual zone of proximal development should not be derived from static analyses of learner corpora, but rely on dynamic learning analytics based on half-open exercises. We demonstrate how a system’s error diagnosis module can be re-used for automatic and dynamic generation and adaptation of distractors, as well as to inform exercise generation in terms of relevant learning goals and reasonable chunking in Jumbled Sentences exercises.

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Reconciling Adaptivity and Task Orientation in the Student Dashboard of an Intelligent Language Tutoring System
Leona Colling | Tanja Heck | Detmar Meurers
Proceedings of the 18th Workshop on Innovative Use of NLP for Building Educational Applications (BEA 2023)

In intelligent language tutoring systems, student dashboards should display the learning progress and performance and support the navigation through the learning content. Designing an interface that transparently offers information on students’ learning in relation to specific learning targets while linking to the overarching functional goal, that motivates and organizes the practice in current foreign language teaching, is challenging. This becomes even more difficult in systems that adaptively expose students to different learning material and individualize system interactions. If such a system is used in an ecologically valid setting of blended learning, this generates additional requirements to incorporate the needs of students and teachers for control and customizability.We present the conceptual design of a student dashboard for a task-based, user-adaptive intelligent language tutoring system intended for use in real-life English classes in secondary schools. We highlight the key challenges and spell out open questions for future research.

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On the relevance and learner dependence of co-text complexity for exercise difficulty
Tanja Heck | Detmar Meurers
Proceedings of the 12th Workshop on NLP for Computer Assisted Language Learning

2022

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Generating and authoring high-variability exercises from authentic texts
Tanja Heck | Detmar Meurers
Proceedings of the 11th Workshop on NLP for Computer Assisted Language Learning

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Parametrizable exercise generation from authentic texts: Effectively targeting the language means on the curriculum
Tanja Heck | Detmar Meurers
Proceedings of the 17th Workshop on Innovative Use of NLP for Building Educational Applications (BEA 2022)

We present a parametrizable approach to exercise generation from authentic texts that addresses the need for digital materials designed to practice the language means on the curriculum in a real-life school setting. The tool builds on a language-aware searchengine that helps identify attractive texts rich in the language means to be practiced. Making use of state-of-the-art NLP, the relevant learning targets are identified and transformed intoexercise items embedded in the original context. While the language-aware search engine ensures that these contexts match the learner‘s interests based on the search term used, and the linguistic parametrization of the system then reranks the results to prioritize texts that richly represent the learning targets, for theexercise generation to proceed on this basis, an interactive configuration panel allows users to adjust exercise complexity through a range of parameters specifying both properties of thesource sentences and of the exercises. An evaluation of exercises generated from web documents for a representative sample of language means selected from the English curriculum of 7th grade in German secondary school showed that the ombination of language-aware search and exercise generationsuccessfully facilitates the process of generating exercises from authentic texts that support practice of the pedagogical targets.