{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T20:02:09Z","timestamp":1780516929131,"version":"3.54.1"},"reference-count":52,"publisher":"Sociedade Brasileira de Computa\u00e7\u00e3o","issue":"1","license":[{"start":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T00:00:00Z","timestamp":1780012800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JBCS"],"abstract":"<jats:p>The integration of Information and Communication Technologies (ICT) in basic education, driven by uniform policies, often overlooks the heterogeneity of school contexts and how different infrastructures mediate teacher technology appropriation. A critical gap remains concerning how distinct infrastructural configurations shape appropriation processes and adaptive strategies in contexts of material inequality. We conducted an exploratory qualitative comparative study with 25 teachers across three urban schools from Pernambuco state educational system, Brazil, representing distinct infrastructural configurations. A framework analysis was used for structured comparison, generating a provisional typology of three qualitatively distinct techno-pedagogical ecosystems: Survival, Limited Adequacy, and Competition. Results suggest a functional inversion where stable connectivity was perceived by teachers as a more critical conversion factor than equipment quantity. In these ecosystems, infrastructure appears to operate as an active mediator that shapes, but does not determine, pedagogical possibilities. Teachers develop diverse adaptive strategies, including techno-pedagogical bricolage, temporal orchestration, and selective technology appropriation, that complicate simple dichotomies between uncritical adoption and resistance. The discursive appropriation of Artificial Intelligence (AI) manifests differently across these contexts: in contexts of greater adequacy, teachers articulated pragmatic ambivalence (the simultaneous recognition of potentialities and risks alongside functional experimentation) whereas in contexts of scarcity, discourses of technological optimism with limited explicit engagement with risks predominated; these contrasting patterns may also reflect differences in professional development exposure and group discourse norms. Digital citizenship education remains fragmented across all three settings, further highlighting the qualitatively unequal pedagogical possibilities associated with different infrastructural configurations. These provisional findings point toward the need for differentiated public policies that move beyond uniform solutions and recognize teacher agency without romanticizing structural precarity.<\/jats:p>","DOI":"10.5753\/jbcs.2026.6979","type":"journal-article","created":{"date-parts":[[2026,6,3]],"date-time":"2026-06-03T19:11:14Z","timestamp":1780513874000},"page":"1428-1456","source":"Crossref","is-referenced-by-count":0,"title":["Infrastructure as Active Mediation: Techno-pedagogical Ecosystems and Teacher Technology Appropriation in Pernambuco State Educational System"],"prefix":"10.5753","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-2683-0539","authenticated-orcid":false,"given":"Thyago Jos\u00e9 Oliveira","family":"Costa","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3598-5204","authenticated-orcid":false,"given":"Rodrigo Lins","family":"Rodrigues","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2775-4913","authenticated-orcid":false,"given":"Taciana Pontual","family":"Falc\u00e3o","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"3742","published-online":{"date-parts":[[2026,5,29]]},"reference":[{"key":"1","doi-asserted-by":"crossref","unstructured":"Astudillo, M. 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