Think, Design, Transform with the Sunflower

ETNOSTEM: Bio-Engineering for a Sustainable Future

EtnoSTEAM transforms sunflower stalks, an agricultural waste, into engineering material. Students design earthquake and flood resistant prototypes using local waste and test them with data. This model combines local knowledge with data science, offering a zero-cost, scalable, and sustainable universal STEM guide.

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Overview

Information on this page is provided by the innovator and has not been evaluated by HundrED.

Updated May 2026

Web presence

2026

Established

360 2026

1

Countries

Students basic

Target group

With this innovation, the fundamental change we hope to see in education is that science ceases to be an imported and distant concept and turns into a scientific dialogue that the student establishes with their own geography. A gap in existing education systems is that students perceive the nature around them as ordinary and confine science only to expensive laboratory kits. Through EtnoSTEM, we aim to achieve the following three main transformations: 1. Perceptual Transformation (Seeing Instead of Just Looking at Nature): We aim for students to define agricultural wastes not as garbage but as strategic biomaterials that solve complex global problems such as seismic resistance and insulation. This is the mental reconstruction of the concept of waste as raw material for innovation. 2. Methodological Depth: We foresee STEM education evolving from being just an activity or a model-making process into a data-driven engineering design cycle. We target a level of scientific literacy that proves the success of a design not because it looks good but through quantitative performance data such as the Efficiency Ratio (R), and that feeds on error analysis. 3. Global Equity and Sustainability: We want to break the perception that STEM education is an expensive privilege. We offer a zero-cost but high-standard pedagogical model that allows a teacher anywhere in the world to transform the waste in their own field into a universal science laboratory without needing expensive materials

About the innovation

Why did you create this innovation?

Today, the world of education faces a great contradiction: while confining STEM education to expensive plastic kits and imported curricula, we are burning the immense innovation potential right outside our window. In Thrace, after every harvest, tons of sunflower stalks are seen as waste and burned, releasing significant amounts of CO₂ into the atmosphere. This situation is not only an environmental loss but also a pedagogical disconnect. We developed this innovation to take science out of the laboratory walls and connect it to the reality of the field. The main motivation behind developing EtnoSTEM is to enable students to redefine the worthless materials around them as strategic biomaterials that produce solutions to global problems such as seismic resistance and hydrological stability. While traditional methods transmit knowledge, we have established a problem-solving ecosystem by blending creativity with a local material (sunflower stalk). Our students analyze the microscopic porous structure of the stalk and design earthquake-resistant towers that can carry 7.5 times their own weight, as well as barriers that manage floods.
The global value of this model lies in its sustainability: zero-cost, high-level engineering education. A teacher in Mexico can turn corn cobs, and a teacher in the Black Sea region can turn hazelnut shells, into educational tools using the same EtnoSTEM methodology.

What does your innovation look like in practice?

The EtnoSTEM innovation comes to life as a dynamic 5-stage cycle. The application is a physical design ecosystem blended with digital data, where ready-made kits are replaced by sunflower stalks collected from the field.

The process in practice proceeds as follows:

1. Contextual Problem: The process begins with media analysis involving real-world problems such as Meriç River floods or seismic risks. Students identify an engineering need focused on a solution.

2. Discovery and Microscopic Analysis: Students examine the sunflower stalk under digital microscopes. By making digital measurements on the stalk's porous structure and cell cavities, they scientifically prove with data why the material is light, flexible, or buoyant.

3. Design and Prototyping: Working in small groups, students build seismic towers, floating bridges, or flood barriers. At this stage, the sunflower stalk becomes the main raw material for engineering decisions such as cross-bracing and triangulation.

4. Data-Driven Testing: Designs are evaluated not just because they look good, but based on performance. For example, when a 60-gram seismic tower carries a 450-gram load, the calculated Efficiency Ratio (R) of 7.5 turns the student's success into mathematical proof.

5. Digital Documentation and Reflection: The process is completed with 60-second engineering pitch videos and reflective journals. Students document their mistakes and design changes in their digital portfolios.

How has it been spreading?

The dissemination speed of EtnoSTEM derives its power from high-impact pedagogy rather than high-cost technology. The innovation sprouted as a scientific pilot application at Çorlu Science and Art Center (BİLSEM); the academic findings and design successes obtained there formed the solid foundation of the model.

The regional growth of the application was triggered through a trainer-training model. The methodology of the model was transferred by reaching 101 teachers via STEM workshops. This enabled its integration into different schools and classrooms across the province. A total of 257 students were directly reached, achieving this mental transformation from waste to innovation.

This zero-cost approach, requiring no ready-made kits, allows any geography to transform its own agricultural waste into a STEM laboratory. The change we have created today in the minds of 257 students in Tekirdağ is a universal education protocol that can be replicated in any geography.

If I want to try it, what should I do?

EtnoSTEM: Universal Engineering Application Protocol in a Local Context

1. Local Problem Identification
In the first step, a crisis or area of need specific to the region where the project will be implemented must be selected. This can be a specific environmental factor such as river floods, drought management, seismic risks, or waste management. The goal is to ensure that students perceive science not as "imported" knowledge, but as a tool that produces solutions to the problems of the place they live in.

2. Regional Biomaterial Selection and Characterization
Define the agricultural wastes offered by your own geography (sunflower stalks, corn cobs, sugar cane fiber, hazelnut shells, etc.) as technical materials. Through digital microscope analyses and cell structure measurements, reveal the physical potential (lightness, flexibility, porosity) of the material with scientific data.

3. Engineering Design Cycle (EDC)
Using the selected materials, design prototypes (barriers, structures, filtration systems) that respond to the identified local problem. Here, apply universal engineering principles such as triangulation, load distribution, and stability using local raw materials.

4. Quantitative Data Analysis and Performance Testing
Base the success of the designs on mathematical evidence. Calculate the performance (capacity/weight ratio) of the prototype using metrics such as the Efficiency Ratio (R). The data collection and comparison process provides the scientific depth of

Implementation steps

Step 1: Identifying the Local Problem and Learning Context

The teacher identifies a local problem that students encounter in daily life but rarely examine scientifically. This problem may be related to agricultural waste, water scarcity, flooding, earthquakes, erosion, drought, biodiversity loss, or cultural heritage. Then, a local material or cultural element connected to this problem is selected to create the learning context of the activity.

Step 2: Selecting a Local Material or Cultural Resource

Students examine a local material, natural resource, agricultural residue, traditional object, or cultural practice linked to the selected problem. The material should be safe, accessible, low-cost, and suitable for classroom use. At this stage, the aim is not to produce an industrial solution, but to transform a familiar local element into a scientific observation and design resource.

Step 3: Scientific Observation and Material Examination

Students examine the selected local material with the naked eye, a magnifying glass, or a simple microscope. They observe features such as texture, lightness, flexibility, durability, porosity, water absorption, breaking pattern, and joinability. Students then relate these properties to scientific concepts and discuss how the material could be used in design problems.

Step 4: Connecting Local Knowledge and Culture

Students investigate how the selected material was used in the past. They may conduct short interviews with family elders, local producers, craftspeople, or community members. In this way, both the physical properties of the material and its cultural meaning are explored. Students connect traditional uses of the material with their own design ideas.

Step 5: Defining the Design Problem

Students write a clear design problem based on the selected local issue and material. The problem should explain who it is for, what need it addresses, and what constraints must be considered. Groups identify which property of the material they will use and define the criteria for a successful design.

Step 6: Designing and Building the Prototype

Students develop a low-cost and safe prototype using the observed properties of the local material. Drawing, measuring, cutting, joining, and modelling stages are carried out under teacher supervision. Groups explain why they used specific forms, connections, or supports in their designs with scientific reasoning.

Step 7: Testing the Prototype and Collecting Data

Students test their prototypes using safe and simple experimental setups. The test should match the selected problem; for example, observations may involve water, weight, vibration, slope, temperature, or durability. Groups record under which conditions the design worked, where it failed, and what measurable results were obtained.

Step 8: Interpreting Results and Redesigning

Students evaluate the test results and identify the strengths and weaknesses of their prototypes. Failures are treated not as mistakes, but as data for improving the design. Groups explain which part did not work and why, justify their decisions with scientific concepts, and revise their prototypes to make them stronger, more functional, or more sustainable.

Step 9: Reflection and Learning Journal

At the end of the process, students write individual learning journals. In their journals, they explain their initial ideas about the material, the scientific properties they observed, the changes they made to the prototype, and the connections they established with local culture. This reflection process makes students’ scientific thinking, design decisions, and cultural awareness visible.

Step 10: Sharing and Dissemination

Students present their prototypes, test results, and connections with local culture through posters, presentations, short videos, digital exhibitions, or classroom sharing. The local problem, selected material, scientific reasoning, design process, and results are clearly explained.