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HBO/WO

MBO

April 8, 2026

ACA-bot

ACA-bot is an engaging chatbot designed for Automated Conversational Assessment (ACA). Drawing inspiration from traditional oral exams, this text-based conversational agent transforms assessment into a dynamic learning experience. It supports both formative and summative evaluation by offering students personalised feedback and guidance at every step of their learning journey. The first ACA-bot prototype focuses on assessing students’ understanding of basic statistical concepts, but its flexible design allows for easy adaptation to a wide range of subjects and learning contexts. Through interactive dialogue, students can practise explaining ideas clearly under exam-like conditions, apply their knowledge to new and challenging questions, and refine their reasoning as they respond to follow-up prompts. They gain valuable insights into their own understanding, identify areas for improvement, and gradually build confidence for both oral and written assessments. For educators, ACA-bot offers a powerful way to scale oral examinations and enhance formative assessment without increasing workload. It automates parts of the assessment process, provides structured and actionable insights into student performance, and opens the door to more personal, interactive feedback at scale. By combining the strengths of conversational AI and educational assessment, ACA-bot turns evaluation into a collaborative, insightful process. It empowers students to think aloud, reason more effectively, and grow, while giving educators a smarter, more innovative way to understand and support learning. ACA-bot is een slimme en inspirerende chatbot die onderwijs en Artificial Intelligence samenbrengt. Geïnspireerd door het klassieke mondelinge examen tilt deze tekstgebaseerde gespreksagent Automated Conversational Assessment naar een nieuw niveau. Studenten krijgen via natuurlijke gesprekken directe, persoonlijke feedback en begeleiding, waardoor leren en toetsen samenvloeien in één boeiende ervaring. Het prototype van ACA-bot is ontwikkeld om kennis over statistiek te beoordelen, maar dankzij het flexibele ontwerp kan het systeem eenvoudig worden aangepast aan andere vakgebieden en toepassingen. Tijdens interactieve dialogen leren studenten helder uitleg geven, hun kennis toepassen op nieuwe vragen en hun redenering aanscherpen. Ze ontdekken waar hun begrip nog verdiept kan worden en groeien zichtbaar in zelfvertrouwen — waardevolle voorbereiding op zowel mondelinge als schriftelijke examens. Ook voor docenten biedt ACA-bot een slimme oplossing. Het maakt mondelinge toetsing schaalbaar, ondersteunt formatieve beoordeling via gesprek, en vermindert de werkdruk door delen van het beoordelingsproces te automatiseren. Bovendien geeft het gestructureerde inzichten in de voortgang en denkwijze van studenten, waardoor elke dialoog bijdraagt aan beter onderwijs. ACA-bot laat zien hoe Automated Conversational Assessment het leren persoonlijker, interactiever en effectiever maakt. Studenten denken hardop, verkennen hun eigen begrip, en verbeteren met vertrouwen — terwijl docenten op een innovatieve, datagedreven manier inzicht krijgen in hoe kennis werkelijk wordt begrepen.

App

Aki Härmä, Julie Bauer

October 12, 2025

Glass Sustainability: Recycling

In this video Faidra Oikonomopoulou & Telesilla Bristogianni explain that while glass is 100% recyclable in theory, in practice, successful closed-loop recycling is largely limited to the container industry (bottles and jars). For other glass products, like architectural and automotive glass, recycling rates are very low, with most post-consumer waste being downcycled or landfilled. The main barriers are technical, such as contamination from coatings and chemical incompatibility between different glass types, and logistical, including the difficult disassembly of complex products like windows. The video contrasts the high recycling rate of glass bottles in the EU (76%) with the minimal recycling of post-consumer float glass from buildings (under 1%). Solutions proposed include investing in new recycling methods like casting, establishing better collection facilities, implementing tracking systems for building materials, and designing products for disassembly from the start. The video concludes that overcoming these barriers is key to unlocking the full potential of glass recycling. The video was produced by the Open GLASSroom project. Special thanks to Faidra Oikonomopoulou & Telesilla Bristogianni for contributing to the Open GLASSroom OER collection. The creation of these resources has been (partially) funded by the ERASMUS+ grant program of the European Union under grant no. 2022-1-DE01-KA220-HED-000089750. Neither the European Commission nor the project's national funding agency DAAD are responsible for the content or liable for any losses or damage resulting of the use of these resources.

Video

Faidra Oikonomopoulou

October 1, 2025

An analysis of the current developments and scenarios for the transition to a fossil-free energy society this century

This century, greenhouse gas emissions such as carbon dioxide, methane, and nitrogen oxides must be significantly reduced. Greenhouse gases absorb and emit infrared radiation that contributes to global warming, which can lead to irreversible negative consequences for humans and the environment. Greenhouse gases are caused by the burning of fossil fuels such as crude oil, coal, and natural gas, but livestock farming and agriculture are also to blame. In addition, deforestation contributes to more greenhouse gases. Of the natural greenhouse gases, water vapor is the main cause of the greenhouse effect, accounting for 90%. The remaining 10% is caused from high to low by carbon dioxide, methane, nitrogen oxides, chlorofluorocarbons, and ozone. In addition, there are industrial greenhouse gases such as fluorinated hydrocarbons, sulphur hexafluoride, and nitrogen trifluoride that contribute to the greenhouse effect too. Greenhouse gases are a major cause of climate change, with far-reaching consequences for the welfare of humans and animals. In some regions, extreme weather events like rainfall are more common, while others are associated with more extreme heat waves and droughts. Sea level rise caused by melting ice and an increase in forest fires are undesirable effects of climate change. Countries in low-lying areas fear that sea level rise will force their populations to move to the higher-lying areas. Climate change is affecting the entire world. An estimated 30-40% o f the carbon dioxide released by the combustion of fossil fuels dissolves into the surface water, resulting in an increased concentration of hydrogen ions. This causes the seawater to become more acidic, resulting in a decreasing of carbonate ions. Carbonate ions are an important building block for forming and maintaining calcium carbonate structures of organisms such as oysters, mussels, sea urchins, shallow water corals, deep sea corals, and calcareous plankton.

Open (Access) Text Book

Folkert Koopman

September 1, 2025

Economics in the Digital Age: Insights and Applications

This book serves as an essential resource for both undergraduate and graduate programs due to its comprehensive approach to digital economics: Theoretical Integration: It integrates classical economic theories with the digital economy, demonstrating how traditional principles apply to new digital realities. Practical Frameworks: It provides actionable insights for analyzing digital market trends and monetization strategies, relevant for students, managers, and business professionals alike. Case Studies and Real-World Applications offer concrete examples of digital transformations, making complex concepts more accessible and useful for research and coursework. Advanced Analytical Tools: The book helps students develop the analytical skills needed to evaluate digital business strategies, market dynamics, and the broader economic impact of digital technologies. For professionals, this book provides strategic guidance on navigating the challenges and opportunities of the digital economy. By understanding the core economic principles behind digital business models, managers can make informed decisions on everything from digital marketing to product development, all while anticipating and mitigating risks like cybersecurity threats or regulatory changes.

Open (Access) Text Book

Shilpa Samplonius-Raut

October 15, 2024

The Delft Method for System Dynamics - Modelling Exercises

These modelling exercises are part of the TU Delft Open textbook "The Delft Method for System Dynamics". The Delft Method for System Dynamics (SD) is a proven method of learning basic System Dynamics. The method focusses on learning by doing: first you try to make an exercise, and if you do not understand something or do not know something, then you can look it up in the theory part of the book. The book contains theory exercises on topics like causal loop diagramming, delays, and how to motivate why SD is appropriate. The book also contains modelling exercises that show students how to build low to medium complexity models, and how to use these quantitative models for scenario or policy analysis. The theory chapters cover all phases of the modelling cycle: problem articulation, conceptualisation, formulation, evaluation (including validation and scenario analysis), and policy analysis. This book is intended for students and educators in large or small System Dynamics courses, and for motivated students that want to learn SD in their own pace.

Document

Willem Auping, Floortje d’Hont, Merla Kubli, Patrick Steinmann, Jill Slinger, Floris van der Heijde, Erik Pruyt, Els van Daalen, Wil Thissen

September 24, 2024

Tales of a t-shirt - Book

This book is the outcome of an experimental research and teaching project, aimed at rethinking how the garments we wear create relationships between producers, designers and wearers. The project has researched these relationships centered on the production of a dedicated t-shirt, designed, produced and put to use by the project partners, who are located in the Netherlands and India. This book provides an overview of the project trajectory, focusing on how the project has facilitated students from the vocational training colleges in Rotterdam (Netherlands) and Erode (India) to engage in co-creation, and encourage conversations on design, materials, labour, social inequality (caste), gender and value. The book is a resource for students and educators working in fashion-related fields at high-school, vocational training and early bachelor degree levels. Integral to the book are a number of short video clips, dedicated to the crucial phases of the process. This book will be a resource for college students and educators who are concerned with the production and use of textiles, particularly in relation to fair trade, circularity and sustainability in the garment industry. It aims to elucidate the textile value network that supports the production of cotton garments, illustrating the processes (designing, farming, ginning, spinning, weaving, dyeing, printing, cut-make-trim, and shipping as well as wearing, customizing, and discarding). It does this by following the production of a long-sleeved, unisex t-shirt co-designed by students in the Netherlands and India. Through videos and photos, as well as texts, the book aims to make this process accessible and engaging to fashion and design students. With the book we aim to raise the awareness of future students in relation to the production of garments by enabling them to follow their peers and colleagues as they participate in the production processes. Moreover, by enabling the students to engage with the stories connected to the diverse people who are involved in the production process and to learn about the challenges they face, we aim to empower the students to become more socially and environmentally conscious fashion designers.

Document

Rachel Lee, Erik de Maaker

December 11, 2023

Landscapes | Holistic Grazing, Holistic Thinking - Nikki Yoxall

A recent wave of sustainability claims confidently dictate how, for what, and where we ought to use land for climate mitigation and biodiversity conservation. Nikki Yoxall, a self proclaimed regenerative landscape manager walks through her thinking on land use decision making and responds to these critiques. Episode Links Food without farming, Nature Sustainability Guthman on the problems with localism DeLind on the problems with localism Phil Loring – deeper meaning of regen ag Understanding Ag team in the US Paige Stanley’s rangelands research Pasture for Life Remembering David Stanley Carbon Cowboys Network Samantha Mosier article on evidence of benefits of Adaptive Multi-Paddock Grazing Soilmentor Highlands Rewilding Hannah Ritchie introducing her new book An environmentalist gets lunch – Hannah Ritchie The Cruel Fantasies of Well-Fed People, George Monbiot EU project on livestock futures Landscapes is produced by Adam Calo. A complete written transcript of the episode can be found on Adam’s newsletter: Land Food Nexus. Send feedback or questions to adamcalo@substack.com. Music by Blue Dot Sessions: “Kilkerrin” by Blue Dot Sessions (www.sessions.blue). You can find full transcripts of the episodes and more information at https://adamcalo.substack.com/

Audio

Adam Calo

August 23, 2023

Interactive session: Risk & Risk mitigation

Recognize, analyze and discuss the necessity and the role of security testing in AI. Employ documents, such as the AI Act, to classify use cases into risk categories. Discuss in-depth and with common European vocabulary on AI risk and how can AI be designed safely and benevolently, in ways that will not expose humans to unacceptable risks of harm, even when risky behaviour may advance a system goal. Classify the obligations of providers and users in relation to AI risk management. Discuss the requirements for high-risk AI systems as per the AI Act. Elaborate and recognize specific risks and risk taxonomies, relevant throughout the different stages of the AI lifecycle.

Website

HCAIM Consortium

August 23, 2023

Lecture: ML-Ops Lifecycle

Understanding MLOPs end-to-end Understanding Data Ingestion Getting familiar with Algorithm Development Getting familiar with Model Development and Deployment Understanding Continuous Monitoring

Website

HCAIM Consortium

August 23, 2023

Lecture: Privacy and machine learning

Understanding of privacy risks in machine learning Distinguish training data and model extractions attacks/threats Learn adversarial modelling and threat analysis in AI Learn the principles of AI privacy auditing Distinguish membership and reconstruction attacks Distinguish membership attack and model inversion

Website

HCAIM Consortium