The IDEMS Podcast

40 Episodes
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By: IDEMS International

Stories from a social enterprise that uses mathematical sciences in impact-oriented work around the world. Our experiences range from helping some of the world's poorest farmers get value from data, to enabling academics to use AI responsibly in their teaching. We never know what our next task will be but the last 6 years have shown that it is likely to lead to a story.

193 – Using Generative AI in IDEMS Work
Last Tuesday at 3:39 PM

Lily and George discuss their personal experiences of using generative AI in their work. They explore how AI assists in course development, coding, and writing tasks, sharing insights on how these tools can enhance productivity and creativity.


192 – Twenty Years of RMS for CRFS: Crop Simulation Models
Last Friday at 3:17 PM

Lucie and Roger discuss the intricacies and applications of crop simulation models in agricultural research. Roger explains the historical development of these models since the 1980s and provides a detailed explanation of how crop simulation models work, such as the DSAT and APSIM systems, which are used extensively in the United States and Australia. The discussion underscores the models' value in complementing traditional field experiments, especially in understanding long-term agricultural dynamics. They also touch on the challenges of implementing these models in Africa due to climatic data availability.


191 – Gamification of Education
09/09/2025

Santiago and David discuss how aspects of education could be “gamified” in order to improve outcomes. They explore various real-world examples of how games are used to enhance learning, including platforms like Kahoot and innovative projects like SmileyCoin. As well as the benefits, they consider the potential downsides, such as excessive screen time and the impact of dopamine release on student concentration.


190 – Twenty Years of RMS for CRFS: Multi-year trials
09/05/2025

As part of their continuing conversations around research methods for agriculture, Lucie and Roger discuss the utility of conducting research trials over multiple years. They consider the importance of understanding climate variability, and the value of pilot experiments as well as the implications of adapting research methods based on initial findings and the benefits of engaging farmers extensively in the research process.


189 – How do people really live around the world?
09/02/2025

How do we understand the material living conditions of people on Earth today? In this episode of the IDEMS podcast, Lily and David discuss the influential book “Factfulness” by Hans Rosling. They explore Rosling's key concepts about global development, particularly the categorisation of the world into four income levels instead of the binary “developing” and “developed” terms.


188 – Twenty Years of RMS for CRFS: Designing Real-World Agricultural Experiments
08/29/2025

Social impact scientist and anthropologist Lucie Hazelgrove Planel joins Roger Stern to discuss the intricate process of designing agricultural experiments. Using a real-world example involving 10 maize varieties and a field with 12 plots, they explore the challenges of fitting theoretical models to practical scenarios.


187 – An Introduction to Presentation Graphs
08/26/2025

How do you present research data in a compelling way? In this episode, Lucie and David discuss the intricacies of creating impactful visualisations for projects. They consider the distinctions between descriptive, exploratory, and presentation graphs. They emphasise the importance of understanding your audience, whether it's scientific, agricultural, or policy-making, and how to adapt visualisations accordingly to tell compelling stories.


186 – Twenty Years of RMS for CRFS: Measurements
08/22/2025

In order to collect research data, we need to take measurements. As part of their continuing conversations, Lucie and statistician Roger consider this critical topic of measurements in agricultural research. They explore various types of measurements, such as context measurements, objective-related measurements, and those that help explain variability, using examples from agricultural trials and anthropological studies. The conversation highlights the nuanced nature of collecting quality data and calls for thoughtful planning and pilot studies.


185 – Enabling Access to STACK through PreTeXt
08/19/2025

Santiago and David discuss recent advancements and challenges in educational technology, looking at the integration of the STACK electronic assessment system with the PreTeXt tool for textbook authoring. Reflecting on a successful African STACK Conference held in Ethiopia, they consider the broader impact of these innovations on education in Ethiopia and potentially other African countries, emphasising the importance of making technology accessible at the student, lecturer, and institution levels.


184 – Twenty Years of RMS for CRFS: Controls
08/15/2025

In their continuing conversations on Research Methods for Agriculture, Lucie and Roger discuss the importance and application of controls in agricultural research. They consider the importance of controls in general, and consider examples from both agricultural and medical experiments, emphasising the importance of ethical considerations when using controls. Roger shares insights on how to make controls meaningful, how to adjust experiments based on intermediate findings, and the potential pitfalls of rigidly adhering to control rules.


183 – Using AI for Qualitative Analysis
08/12/2025

AI tools can be helpful in analysing quantitative data, but their potential utility in qualitative analysis might be less obvious, or even concerning. In this episode of the IDEMS Podcast, data scientist Lily Clements and social impact scientist Lucie Hazelgrove Planel discuss the usage of generative AI in analysing qualitative data. They explore the ethical implications, the importance of context, and the challenge of addressing biases in AI-generated analyses, as well as the evolving intersection of AI with traditional qualitative research methods.


182 – Twenty Years of RMS for CRFS: Levels of Variability
08/08/2025

Lucie Hazelgrove Planel and Roger Stern consider the importance of multilevel data in agricultural research. They discuss the concept of measurement units at different levels, such as individual, household, community, and village, and the challenges faced when dealing with multilevel data in practice. Using an example of a student’s experiment on tadpoles, they illustrate key principles in determining appropriate experimental design and data analysis.


181 – Tricot Participatory Breeding Trials
08/05/2025

In this episode, Lily Clements and David Stern discuss the “Tricot” method for participatory breeding trials. Short for “Triadic Comparisons of Technologies”, Tricot involves farmers testing three crop varieties and ranking them based on qualitative measures. They reflect on a recent workshop aimed at simplifying this complex analysis using custom R packages and the R-Instat software.


180 – Twenty Years of RMS for CRFS: On-Farm Agricultural Trials
08/01/2025

Lucie and Roger continue their discussions of research methods for agriculture, this time focusing on on-farm trials. They consider the benefits and challenges of conducting research on farms versus research stations, emphasizing the importance of farmer involvement in the research process. They consider the innovative “Tricot” method, which tests multiple crop varieties with minimal control from researchers to increase real-world applicability.


179 – Challenging the Dead Internet Theory
07/29/2025

In this episode, David and Santiago debate the 'Dead Internet' Theory, which claims that AI-generated content will dominate the internet, making it less reliable. David challenges this theory, emphasizing the need for digital literacy, responsible use of AI, and the complex nature of trust in institutions versus individuals. They also discuss the implications of misinformation and the importance of critical thinking in society.


178 – Twenty Years of RMS for CRFS: On-Station Agricultural Trials
07/25/2025

In this episode, Lucie interviews Roger about essential aspects of agricultural statistical experiments. They discuss treatment, layout, and measurement, using an irrigation and maize variety case study. Roger emphasizes the importance of clear objectives and balancing statistical rigor with practical agricultural considerations.


177 – Mathematical Modelling vs Statistical Modelling
07/22/2025

statistical and mathematical modeling. They explore how each field approaches modeling, and touch on hybrid models that incorporate both statistical and mathematical elements, and the significance of uncertainty in modeling predictions.


176 – Twenty Years of RMS for CRFS: Multimethod Agricultural Research
07/18/2025

In this episode, Lucie and Roger discuss planning agricultural research, highlighting on-station and on-farm trials. They emphasize integrating diverse data collection methods, farmer involvement, and balancing research design and farmer participation.


175 – The PhD to IDEMS Postdoctoral Fellow Journey
07/15/2025

In this episode, Lily and George discuss their journeys from their PhD to IDEMS’ Postdoctoral Impact Activation Fellowship. Lily also describes her transition to a permanent role while George describes what he imagines his transition might be like. An informal chat that reveals two different enough yet similar experiences joining IDEMS.


174 – Twenty Years of RMS for CRFS: Introducing Roger
07/11/2025

In this episode, Lucie talks to Roger about his work in agricultural research methods. Roger shares his experience with CCRP, the shift from on-station to on-farm research, the role of farmers' organizations, and advancements in data collection and analysis.


173 – Twenty years of RMS for CRFS
07/08/2025

In this episode, Lucie and David discuss the 20th anniversary of the Collaboration for Resilient Food Systems’ Community of Practice in West Africa, and in particular the evolution of its Research Methods Support. The conversation underscores the impact of patient, long-term approaches and local capacity building in Niger, Burkina Faso, and Mali, as an introduction to a series of upcoming episodes that will delve into the program's history and learnings.


172 – Proxy Variables
07/04/2025

In this episode, Lily and David discuss the concept of proxy variables and feedback loops. They explore the use of proxies when direct measurement is impractical, using examples from agriculture and education. The discussion includes the pitfalls of educational performance metrics and university rankings, demonstrating the complexities and potential misinterpretations involved in using proxy indicators.


171 – Building a Local Research Methods Support Team
07/01/2025

Lucie and David discuss the recent progress and training in building a research methods support team in West Africa. The conversation highlights their efforts in providing various trainings, and the development of local teams capable of delivering these trainings. They also emphasize the importance of reflective learning reports, local capacity building, and moving towards more engaging pedagogical methods through a gradual, patient approach, aiming for sustained growth and effective collaboration.


170 – Marketing IDEMS: From R&D to Products
06/27/2025

In this episode, George and Kate discuss the challenge of transforming deep R&D into tangible products. They explore the balance between simplicity and complexity, the need for early market validation, and the difficulty of securing private investment for ambitious long-term goals. The conversation touches on the unique product and funding strategies for social enterprises and highlights how IDEMS navigates these challenges while emphasizing the importance of impact over profit.


169 – Marketing IDEMS: The Website Redesign
06/24/2025

In this episode Johnny and Kate discuss the intricacies of marketing IDEMS, emphasizing the challenges of presenting its diverse and impactful work. They highlight the importance of a well-structured website, balancing in-depth technical information with user-friendly content, and the need to showcase successes without overshadowing their collaborative nature. They also touch on the evolution of IDEMS’ marketing strategy, the role of design, and the aim to create a cohesive narrative that resonates with both experts and laypersons.


168 – Collecting Data for Community Research
06/20/2025

Kate Fleming and Lucie Hazelgrove Planel discuss the complexities of collecting sensitive data from communities, emphasizing the importance of building trust and ensuring the data serves the community's interests. The conversation touches on various examples, including work with West African farmers, stressing the need for sustainable, community-focused research models.


167 – “Moral Ambition” by Rutger Bregman
06/17/2025

IDEMS Directors David Stern and Kate discuss the concept of “moral ambition”, prompted by the recent book by Rutger Bregman of the same name. David and Kate reflect on their own career paths, the societal expectations of younger generations, and the challenges they faced while carving out meaningful careers. They explore the interconnectedness of education, entrepreneurial spirit, and moral ambition while critiquing the simplistic hero narrative prevalent in startup culture.


166 – Solarpunk and Positive Visions of the Future
06/13/2025

It feels like we’re surrounded by dystopian visions of the future. But what might a future look like where humanity, technology and nature harmoniously coexist? In this episode, Johnny McQuade and David Stern explore the concept of “Solarpunk”, a science fiction aesthetic that tries to envision exactly this. The conversation touches upon agroecology, renewable energy, and sustainable technology, as well as the role of global supply chains, the differences in technology innovation emerging from Africa vs elsewhere, and the challenges of balancing urban and rural food systems.


165 – Systemic Change
06/10/2025

In this episode, Lily Clements talks to David Stern about how IDEMS aims to bring about systemic change. Key examples include work with National Met Offices in Zambia and Malawi to make climate data accessible and impactful, and digital interventions in parenting programs to reduce violence against children in Tanzania.


164 – Further Reflections on the ICMS Workshop
06/06/2025

Lucie and Kate discuss their experiences at a workshop for PhD and postdoctoral mathematicians at the International Centre for Mathematical Sciences in Edinburgh. They reflect on the challenges mathematicians experience to enter into socially impactful careers, the sense of community the workshop fostered, and the importance of transdisciplinary collaboration.


163 – Rethinking Statistics Education
06/03/2025

Lily Clements and David Stern explore the future of statistics education through the lens of George Cobb's influential 2015 paper, “Mere Renovation is Too Little Too Late: We Need to Rethink Our Undergraduate Curriculum from the Ground Up”. They discuss key imperatives from Cobb's work, such as flattening prerequisites, seeking depth, embracing computation, exploiting context, and teaching through research.


162 – The Origins of the Food Innovation Centres in West Africa
05/30/2025

In this episode, Lucie discussed with Moustapha Moussa and Gabriela Bucini The Origins of the Food Innovation Centres in West Africa. Moustapha tells the story of how these were started, sharing the challenges faced, exposing the courage needed for this innovation, and the successes, focusing on the beautiful social development of farmer communities.


161 – Tool Agnosticism in Modern Education
05/27/2025

George Simmons and David Stern discuss the development of educational courses with a focus on tool agnosticism, particularly in their collaboration with the Open University of Kenya for their Msc in Mathematical Innovation course. They explore the challenges and benefits of assessing student work without being tied to specific tools, and highlight the importance of good question design in ensuring conceptual understanding. They consider the evolving nature of technology in education and the increasing role of AI, emphasising the need for students to adapt to multiple tools rather than mastering just one.


160 – Developing Modeling Courses for the Maths Innovations MSc
05/23/2025

In this episode, George interviews David, discussing the development of an 'Introduction to Systems Modeling' course in collaboration with the Open University of Kenya. They explore balancing theoretical and practical approaches to enhance postgraduate students' modeling skills and emphasize the value of collaboration and iteration in course development.


159 – Innovative MSc Programme for Maths Teachers in Kenya, Part 4
05/20/2025

David Stern is joined by Lily Clements and James Musyoka to discuss the Kenyan MSc program in Maths Innovation. By focusing on data rather than just methods, the program aims to foster a culture of informed decision-making and data literacy in Kenya. They emphasise the importance of contextualising AI and data science education to cater to local needs and challenges.


158 – Innovative MSc Programme for Maths Teachers in Kenya, Part 3
05/16/2025

David and Mike Obiero continue their discussion on the Mathematics Innovations MSc program focusing on the textbook project and how it relates to it. Mike presents his vision on how a community of teachers and educators can be built to create open educational resources of mathematics, and in particular to an interactive, contextualisable open electronic textbook with potential for positive impact in secondary education and beyond.


157 – Innovative MSc Programme for Maths Teachers in Kenya, Part 2
05/13/2025

David Stern and Mike Obiero continue their discussion of the MSc in Math Innovation program. The program's three major pathways – educational innovation, mathematics, and data and AI – are designed to fill specific gaps and cater to diverse interests. They highlight the flexibility of the program and its suitability for both local and international contexts, emphasising its potential for broad impact and collaboration.


156 – Innovative MSc Programme for Maths Teachers in Kenya, Part 1
05/09/2025

David welcomes Mike Obiero back to the podcast, president of the Kenyan Maths Society and lecturer at Maseno University. They discuss a new, flexible MSc programme targeted at mathematics teachers in Kenya. The aim is to empower teachers, provide practical skills, and leverage the rich history of mathematics education in Kenya to produce the next generation of math educators and innovators.


155 – Agroecological Possibilities of Solar Panels
05/06/2025

Lucie Hazelgrove Planel and David Stern discuss an intriguing study on the ecological benefits of solar panels in desert regions. They discuss how solar panels can increase biodiversity by providing shade, reduce desertification, and potentially convert unproductive desert land into valuable solar farms that generate electricity and support agricultural activities, helping to create sustainable oases in deserts worldwide.


154 – Fuma Gaskyia and Human Urine Fertiliser
05/02/2025

David Stern interviews Ali Maman Aminou from Niger about his work with Fuma Gaskiya, a farmer federation. They discuss the federation's origins, its growth from around 5,000 to over 21,000 members, including 55% women, and its significant achievements. Aminou shares how Fuma Gaskiya managed a research grant, tackled data collection challenges, and demonstrated the efficacy of using human urine (referred to as “oga”) as fertilizer. They reflect on shifting power dynamics in research, the development of a farmer-owned data collection app, and how these efforts have elevated the federation's standing as respected research partners.