Hub HUB Search AllDuration x 1 x up to 45-minute class 56 1–2 hours per week over 3–4 weeks) 1 2 x up to 90-minute classes 35 Blended formats: Combination of in-class and field activities 14 Half-day (3–4 hours) 55 full day (6–8 hours) 15EU GreenComp Framework x Acting for sustainability 14 Adaptability 115 Appreciating sustainability 28 Collective action 122 Critical thinking 220 Exploratory thinking 157 Futures literacy 143 Identifying problems 14 Individual initiative 129 Political agency 52 Problem framing 101 Promoting nature 91 Supporting equity 21 Supporting fairness 91 Systems thinking 185 Valuing sustainability 167 knowing the future 14 promoting fairness 7Subject Area x Arts and Music 35 Biology 3 Circular Economy 4 Circular Society 1 Computer Science 105 Economics 63 Educational Policies 1 Environmental Studies 202 Geography 49 History 7 Languages 35 Mathematics 42 Physical Education 7 Science 35 Social Studies 147 Technology and Design 154 ethics/philosophy 7 social sciences 3Language x Bulgarian 57 English 91 German 44 Greek 57 Polish 57 Portuguese 57 Turkish 57Type x Challenge 133 CircEDU Lesson Plans 182 CircEDU Project Plans 70 External Resources 60European Key Competences for Lifelong Learning x Citizenship competence 208 Cultural awareness and expression competence 119 Digital competence 167 Entrepreneurship competence 111 Literacy 146 Mathematical competence and competence in science and technology and engineering (STEM) 146 Multilingual competence 14 Personal/social and learning to learn competence 166 STEM 0Categories x Hub 446Grade Level x ISCED Level 2 – Lower Secondary Education (ages 12–15) 136 SCED Level 3 – Upper Secondary Education (ages 15–18) 254
