Introduction. The modern educational paradigm requires educating learners not as passive recipients of ready-made information, but as individuals capable of constructing knowledge through practical activity, analyzing and solving problems, and drawing scientific conclusions. This requirement is especially evident in teaching subjects such as organic chemistry, which are rich in theoretical concepts, abstract models, and reaction mechanisms [1]. Traditional methods, based on memorizing reaction equations and repeating ready-made rules, do not sufficiently develop students’ interest, analytical thinking, and practical competencies. Therefore, in international educational practice, there is a growing trend toward integrating organic chemistry with project- and research-oriented activities based on the STEM (Science, Technology, Engineering, Mathematics) approach [2].

Within the STEM approach, the learner does not passively receive knowledge; instead, they conduct experiments, observe, measure, compare, and draw conclusions by working with natural materials, simple laboratory tools, and real-life objects. This process ensures interdisciplinary integration, linking chemistry with biology, technology, engineering solutions, and mathematical calculations. As a result, the organic chemistry lesson transforms from a simple laboratory exercise into a project-based research environment that ensures active student participation [3].

The preparation of natural indicators and biopolymers provides an effective didactic basis for implementing this approach. For example, pigments from red cabbage are sensitive to the acidity of the medium and function as natural pH indicators; films formed from starch and glycerin exhibit the properties of biopolymers; and the coloring substances in turmeric visually demonstrate the chromophoric nature of organic compounds. Through these practical processes, students observe and understand theoretical concepts such as functional groups, color formation mechanisms, and polymerization processes based on experimental experience [4].

Such project-based activities systematically develop the following competencies in students: planning experiments, maintaining technological sequence, recording and mathematically analyzing results, finding creative solutions in problem situations, collaborating in teams, and preparing scientific presentations. Most importantly, students begin to perceive organic chemistry not as a collection of reactions, but as a discipline that enables the creation of functional products. This enriches the educational content with ideas of real-life relevance, environmental responsibility, and sustainable development. From this perspective, the present study is aimed at providing a scientific and methodological justification for the implementation of STEM project-based activities, grounded in the preparation of natural indicators and biopolymers, into organic chemistry education. Within the framework of the study, the pedagogical impact of this technology on students’ practical, analytical, and engineering skills is evaluated using experimental methods [5].

Literature Review and Theoretical Foundations. The issue of revising organic chemistry education in accordance with modern requirements has been widely discussed in international pedagogical research. In particular, numerous studies have demonstrated that the implementation of the STEM approach in science education is effective in enhancing student engagement, problem-based thinking, practical experimentation, and project-based activities. In the STEM educational model, interdisciplinary integration is a priority, with greater emphasis placed on acquiring knowledge through practical activity rather than solely through theoretical understanding [6].

Researchers emphasize that the use of project-based and research-oriented methods in teaching abstract subjects such as organic chemistry increases students’ interest and motivation, as learners observe not only reaction equations but also the real products formed as a result of these reactions. This approach helps to reveal the meaning of theoretical concepts and encourages active inquiry. A review of the literature shows that the use of natural indicators has become increasingly common in science education. Natural colorants such as red cabbage, flower pigments, and turmeric exhibit pH-dependent color changes, allowing students to visually understand the concepts of acidity and alkalinity. Such methods develop students’ observation, comparison, and analytical skills [7].

In addition, the preparation of biopolymers (based on starch, gelatin, and cellulose derivatives) is increasingly being integrated into school and higher education practice in connection with environmental education, sustainable development principles, and the concept of “green chemistry.” During the process of bioplastic production, students acquire concepts such as polymerization, intermolecular interactions, plasticity, and mechanical stability through hands-on activity. Many sources highlight that the integration of inquiry-based learning and project-based learning with STEM enhances educational effectiveness, particularly in developing scientific literacy and higher-order thinking skills. In these approaches, students formulate hypotheses, design experiments, process results, and draw conclusions, thereby acting as young researchers [8].

At the same time, the literature indicates that a comprehensive pedagogical technology aimed at systematically developing practical and project-based skills through the use of natural materials in organic chemistry lessons has not yet been sufficiently developed. Most studies are limited to describing individual methods or laboratory activities [9]. This highlights the need to develop an integrated technology for the preparation of natural indicators and biopolymers within a STEM project-based framework. In this regard, the present study aims to elevate the use of natural indicators and biopolymers in organic chemistry education from a simple laboratory activity to the level of a full-fledged STEM project-based educational technology [10].

Theoretical and Methodological Approach. This article represents a theoretical and methodological study developed not on the basis of experimental-pedagogical measurements, but grounded in the analysis of scientific sources. Therefore, the research design is based not on empirical experimentation but on literature review, comparative analysis, and conceptual modeling methods.

During the research process, international scientific sources related to STEM education, project-based learning, inquiry-based learning, “green chemistry,” environmental education, and the methodology of organic chemistry were systematically studied. The selection of sources was guided by the following criteria: studies addressing STEM and interdisciplinary integration; research on the application of practical and project-based activities in organic chemistry; sources related to the use of natural indicators and biopolymers in education; and studies demonstrating the effectiveness of inquiry-based and project-based approaches.

In the course of the analysis, the ideas proposed by various authors were comparatively examined, and their common and distinctive features were identified. On this basis, the theoretical foundations for applying the preparation of natural indicators and biopolymers as a STEM project-based technology in organic chemistry education were сформulated.

The conceptual analysis led to the following conclusions: understanding abstract concepts in organic chemistry through practical activities increases student motivation; the use of natural materials ensures alignment with the principles of environmental sustainability and sustainable development; project-based activities teach students to plan experiments, analyze results, and draw scientific conclusions; and the process of preparing natural indicators and biopolymers demonstrates interdisciplinary integration in a practical form. Thus, based on literature analysis and comparative study, a theoretical and methodological model of STEM project-based educational technology grounded in the preparation of natural indicators and biopolymers was developed. This model is substantiated as a didactic solution aimed at developing practical, analytical, and engineering skills in organic chemistry education.

Conclusion

The analysis of the literature indicates that the traditional, theory-reproductive approach in organic chemistry education does not fully раскрывать students’ practical activity, analytical thinking, and creative potential. Modern educational requirements, however, demand the formation of learners not as passive recipients of knowledge, but as active subjects who discover knowledge through practical activity and are oriented toward functional outcomes. From this perspective, the STEM approach-especially when integrated with project-based and research-oriented activities-can elevate the content of organic chemistry education to a qualitatively new level.

The analyzed scientific sources demonstrate that the preparation of natural indicators and biopolymers serves as an effective didactic tool for visually demonstrating the properties of organic compounds, understanding theoretical concepts through practical activity, and ensuring interdisciplinary integration. This type of activity contributes to the development of key competencies in students, including experiment planning, adherence to technological sequences, observation and analysis of results, creative problem-solving, and collaborative teamwork.

Moreover, the use of natural materials enables the integration of organic chemistry education with ecological thinking, the principles of “green chemistry,” and sustainable development. This, in turn, enhances students’ sense of environmental responsibility and their understanding of the real-life significance of practical knowledge. In conclusion, the STEM project-based approach grounded in the preparation of natural indicators and biopolymers is substantiated as an effective theoretical and methodological solution aimed at developing practical, analytical, and engineering skills in organic chemistry education. This approach makes it possible to transform organic chemistry lessons from a set of reactions into a domain for creating functional products and fostering scientific thinking.

References:

1. Babenko O. M. Stem-based teaching chemistry for sustainable development goals in learning //Publishing House “Baltija Publishing”. — 2025.
2. Nassar D. M. S. M. E. S. et al. Developing Chemistry Curriculum of Secondary Stage in the light of (STEM) Approach //Journal of Research in Curriculum Instruction and Educational Technology. — 2022. — T. 8. — №. 2. — S. 15–62.
3. Striuk A. M. et al. Advancing Education in Challenging Times: A Review of the XVI International Conference on Mathematics, Science and Technology Education (ICon-MaSTEd 2024). — 2024.
4. Kiv A. et al. Advancing Education in Challenging Times: A Review of the XVI International Conference on Mathematics, Science and Technology Education //Paper presented at the IOP Conference Series. — Advancing Education iJournal of Physics: Conference Series, 2024. — №. 2871. — S. 1–26.
5. Rahmawati Y. et al. The integration of dilemma stories with STEM-project-based learning: Analyzing students’ thinking skills using Hess’s cognitive rigor matrix //JOTSE: Journal of Technology and Science Education. — 2021. — T. 11. — №. 2. — S. 419–439.
6. Huang M. C. L. et al. Interest-driven video creation for learning mathematics //Journal of Computers in Education. — 2020. — T. 7. — №. 3. — S. 395–433.
7. Pramudiyanti P. et al. PBL-Based Student Worksheet to Improve Critical Thinking Ability in Science Learning in Elementary Schools //Indonesian Journal of Science and Mathematics Education. — 2023. — T. 6. — №. 1. — S. 109–124.
8. Zhang Y. et al. The Design and Implementation of New Chemistry Classroom Instructional Model under the Condition of “Internet Plus” //2021 Tenth International Conference of Educational Innovation through Technology (EITT). — IEEE, 2021. — S. 1–6.
9. Walker R., Chong S., Chong J. Facilitating peer-led group research through virtual collaboration spaces: an exploratory research study //Research in Learning Technology. — 2021. — T. 29. — S. 2520.
10. Steidle S. B. Exploring the role (s) of community colleges in addressing wicked problems through multi-stakeholder collaboration: An entrepreneurial approach to sustainability: dis. — Old Dominion University, 2021.