This Erasmus+ project is based on the premise that critical thinking, problem solving, creativity, communication, collaboration, and other 21st-century core competencies—which determine how individuals approach complex challenges—influence the application of core literacy skills, such as reading, numeracy, and scientific literacy to everyday situations. The project's focus is on the relationship between the sustainable development goals and core competencies, and scientific literacy. In this context, it includes an e-workbook with various STEM activities.