3D printer, creative design, rapid prototyping, additive manufacturing, activity 3D printing technology, Activity Theory, modeling’s approach of Additive Manufacturing, fablabs Action, reason, geometric middle, developmental perspective, International Center for Genetic Epistemology Activity, artifact, instrument, instrumentalisation, integrated linear amplifier Administrative leadership style, democratic leadership style, autocratic leadership style, transactional leadership style and teacher effectiveness Adult secondary education, teaching of mathematics, utility Analyse lexicométrique, analyse thématique, triangulation méthodologique, biodiversité, curriculum Analyse of the activity, strategy, behaviour, spreadsheet, learning Ancient remains, amphorae, mediation Anthropology, teaching, heuristic research Approach skills, program, investigation, enforcement Area Measurement, teaching area measurement, measurement tools, elementary school Argumentation, personal epistemology, learning, socio-scientific issues, digital Art education, artistic creation, education, subjective teaching, creation Artefact, technical object, categorization, learning, technological education Aspects of adulthood, emerging adulthood, higher education students, roles of adults Attitude, ICTs, training device, teachers training Attrition, Science Teacher Education, Open and Distance Education, Pre-service Teachers Autism spectrum disorder, science education, folk physics test Autonomy, physics and chemistry, teachers, middle school Avalanche, joint action theory for didactics (JATD), physics, resources, science communication Bac-3 and Bac + 3 project, chemistry, semiotic register, modelling process Biological education, educational role of museums, zoological museum, environmental awareness, urban birds Biological evolution, randomness, pupils’ conceptions, discussion with philosophic aim Biology, competencies, national / global context, PISA, school-based exams Biotic system, energy chain, task condition, student’s action, experimental protocol Block diagram, regulation, servo control, technical system Breathing, socioconstructivism, curriculum, curriculum didactics Capacity, volume, didactic and ergonomic approach of practices, sciences education, teaching and learning Chemical reaction, MBL, Lebanon, labwork