The educational process in the STEM concept is aimed at implementing interdisciplinary learning models (cross-curricular connections), through which students are given the opportunity to discover the logical connection between different “pieces” of knowledge taught in multiple scholarly disciplines. Cross-curricular connections are a way to achieve stable knowledge, refracted through the prism of different scientific fields

The present study focuses on the big idea of energy flow in nature and integrates biology, physics and chemistry in various experiments, forming one integral unit. The energy from a biological point of view is studied through the series of experiments involving the fundamental processes like photosynthesis, metabolism, movement and action. To study energy like a physical phenomenon, students have to conduct some experiments like the construction of a dynamo, wind turbine, and water turbine, measure the photovoltaic effect and discuss alternative energy sources. The chemical part of the experiments is related to hydrogen energy and how to use the hydrogen cell to move a car.

When the same lesson is presented from different perspectives, we enable students to be flexible, make connections between subjects, and work in a variety of circumstances. They understand concepts, phenomena, and events better when we provide them with different learning contexts and perspectives through which to explore them.