As part of the European project “Mathematical Creativity Squared” (2013 - 2016), and in collaboration with the Educational Technology Lab along with an interdisciplinary team of educational designers, a series of digital books have been developed utilising the innovative “C-Book technology”.

This digital learning material is designed to creatively address issues related to Environmental Education and Sustainable Development (EE/ESD), to enhance students' creative engagement and comprehension of complex EE/ESD and mathematical concepts. Additionally, these digital resources are intended for use in training programs and professional development courses focused on EE/ESD, specifically tailored for interdisciplinary teacher training groups. The titles include:

• Bike in the city
• On bicycles in the park
• Sustainable city
• The Bioclimatic Amusement Park (English version)
• The Bioclimatic Amusement Park (Greek version)
• Climate change
• A fire that must be put out
• The Earth is raising a fever