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This workbook guides  students through a hands-on learning process focused on recycling , circular economy  and  sustainability using PET bottles  as a starting point. It includes structured activities to explore plastic waste, understand its environmental impact and connect these challenges with the Sustainable Development Goals. Students work through research tasks, analysis of real examples and guided activities to understand how PET bottles can be transformed into 3D pri

This teacher guide supports the implementation of the PET Filament Pathway through a clear, classroom-ready structure. It provides learning objectives, session planning and practical guidance to help educators introduce circular economy concepts through the real transformation of PET bottles into 3D printing filament . The resource is organised as a step-by-step teaching flow , combining technical understanding of the PET recycling machine (parts, functions, setup and use) w

This teacher guide is designed to support educators in implementing the PET Filament pathway in the classroom in a structured, safe and pedagogically meaningful way. It provides a clear overview of the educational objectives, competencies developed and methodology, with a focus on sustainability, circular economy and STEAM learning. The guide explains how to introduce key concepts related to PET recycling, filament creation and 3D printing , offering practical guidance on cl

This workbook is structured as a guided learning journey that introduces students to the practical process of recycling PET bottles into 3D printing filament . Through clearly defined phases, students explore how a PET filament recycler works, identify its main components, learn which materials and tools are needed, and understand how plastic bottles must be prepared before recycling. The activities focus on observation, classification, and hands-on experimentation , combini

The downloadable 3D printable files are a production-ready set of .STL/.OBJ components  used to build and customise the EU FOR ALL PET Bottle Filament Machine . The parts can be downloaded directly from Tinkercad  (STL/OBJ export) or accessed as a ready-to-use package, and the companion materials explain what each component does—such as the central structure, side supports, cutter, motor mount, spool, filament joiner and screen protector—and how everything fits into the recyc

This resource consists of editable Canva presentation templates designed for students to organise, document and present the work developed in the Sustainable Business Student Workbook . The slides are not a fixed presentation, but a flexible structure that supports the visual communication of ideas and learning outcomes. Students use these templates to present sustainability challenges, business ideas, product or service proposals, target groups and sustainability impact. Th

This teacher guide supports educators in implementing the Sustainable Business pathway in the classroom through a clear, structured and practical approach. It explains the educational objectives, competencies developed and methodology, focusing on sustainability, circular economy and entrepreneurship linked to real-world contexts. The guide provides step-by-step guidance on how to use the Sustainable Business Student Workbook and Slides , including suggestions for classroom o

This student workbook guides learners through a structured, project-based process to understand and create sustainable business ideas connected to real-world challenges. It introduces key concepts related to sustainability, circular economy and the Sustainable Development Goals, encouraging students to reflect on their environment and identify meaningful problems that can be addressed through entrepreneurship. The workbook includes activities focused on research, analysis of

This resource consists of editable Canva  presentation templates designed for students to organise, document and present the work developed in the PET Filament Workbook. The slides are not a fixed presentation, but a flexible structure that allows students to visually represent each stage of the learning process, from the analysis of plastic waste to the final product created with recycled filament. Students  use these slides to collect research findings, explain the PET rec

Located at the end of Andrássy Avenue  in Budapest , Heroes’ Square  ( Hősök tere ) is one of Hungary’s most important national monuments . Built in 1896  to commemorate the millennium of the Hungarian conquest of the Carpathian Basin , the square is a grand open space framed by iconic statues and historic meaning. At its center rises the Millennium Monument , a tall column topped by the archangel Gabriel, flanked by statues of the seven chieftains of the Magyars , the founde

The Sveta Nedelya Cathedral  is a historic and symbolic church in the heart of Sofia , Bulgaria. Although its origins date back to medieval times , the current structure was built in the 19th century  and later reconstructed after the 1925 bombing , one of the most tragic events in Bulgarian history. Dedicated to Holy Sunday (Sveta Nedelya) , the cathedral is a spiritual and architectural focal point of the city. Its green domes , arched colonnades , and serene interior creat

The Alexander Nevsky Cathedral , located in the center of Sofia , is one of the largest Orthodox churches in the world and one of Bulgaria’s most emblematic landmarks . Built between 1882 and 1912 , it was constructed to honor the Russian soldiers  who died during the Russo-Turkish War, which led to Bulgaria’s liberation from Ottoman rule. With its massive gilded dome , rich mosaics, marble interior, and towering bell tower, the cathedral is an architectural masterpiece of th

Located in the heart of Zagreb , the Croatian Artists’ House  ( Dom hrvatskih likovnih umjetnika ) is a striking example of modern architecture with a cultural mission . Built in 1938  in a circular, monumental style, the building is often referred to as the “Meštrović Pavilion” , named after the famous Croatian sculptor Ivan Meštrović , who designed it. Originally conceived as a temple of art , the building’s function has changed with the tides of history — serving as a mosq

The Pula Arena , located in the coastal city of Pula , is one of the best-preserved Roman amphitheatres  in the world — and the only one  with all four side towers still intact. Built in the 1st century AD  during the reign of Emperor Vespasian, the same period as the Colosseum in Rome, it once hosted gladiator fights and public spectacles. Constructed entirely of local limestone , the arena could hold up to 20,000 spectators  and was an important civic space in Roman times.

Nestled within the mouth of a cliffside cave, Predjama Castle  (Predjamski grad) is one of the most dramatic and mysterious castles in Europe . Located in southwestern Slovenia , the current structure dates back to the 16th century , but the site has hosted fortifications as early as the 13th century . Built directly into the karst rock face , the castle appears as if it has emerged from the mountain itself. It was designed for defensive advantage , with secret tunnels, natur

Perched on a hill above the Adriatic town of Piran , the St. George Parish Church  ( Župnijska cerkev sv. Jurija ) is one of the most iconic religious buildings in Slovenia’s coastal region . Dedicated to Saint George , the patron saint of Piran, the church offers stunning views of the sea and the surrounding red-roofed town. Originally built in the 12th century  and later renovated in Baroque style  in the 17th century, the church’s design reflects the Venetian influence  th

Located in the vibrant city of Novi Sad , the Name of Mary Cathedral  ( Crkva Imena Marijinog ) is one of the most beautiful Catholic churches  in Serbia. Built in 1895  in Neo-Gothic style , it stands out for its towering spire , stained glass windows, and detailed façade — a stark contrast to the Orthodox churches that dominate the region. The church was designed by architect György Molnár and rises over 72 meters , making it the tallest building in Novi Sad. Its colorful r

The Temple of Saint Sava  is not only the largest Orthodox church in Serbia , but also one of the largest in the world . Located in Belgrade , its massive white domes dominate the city skyline and symbolize national pride, faith, and cultural resilience . Construction began in 1935 , on the site where it’s believed the Ottoman Empire burned the remains of Saint Sava , the founder of the Serbian Orthodox Church. However, due to war and political instability, the temple wasn’t

The CEC Palace , or Palatul CEC, is one of Bucharest’s most elegant and iconic buildings , standing proudly on Calea Victoriei  since its completion in 1900 . Designed by French architect Paul Gottereau, the building served as the headquarters of the Caisse d'Épargne (Savings Bank)  of Romania, and today still houses the CEC Bank . The palace is a masterpiece of eclectic architecture , combining Beaux-Arts style  with a majestic glass and metal dome , richly decorated facades

Tucked away in the historic heart of Bucharest , the Stavropoleos Church  ( Biserica Stavropoleos ) is a small yet breathtaking example of Brâncovenesc architecture , a uniquely Romanian style that blends Byzantine, Ottoman, and Baroque  influences. Built in 1724  by a Greek monk named Ioanikie Stratonikeas, the church originally belonged to a monastery complex. Despite its modest size, the building is rich in ornamentation and atmosphere . Delicate stone carvings, wooden ico