This document discusses how openness in mainstream classrooms in Sweden can be advanced through partnerships between Wikipedia and cultural heritage institutions (GLAMs). It describes several existing Swedish projects that involve students contributing to and learning from open online platforms like Wikimini (a Swedish Wikipedia for students), Platser (a crowdsourced landscape history site), and Stockholm Digital Archives. These projects engage students in representing and learning about local culture and history. The document argues that such partnerships can give students ownership over local history, engage them in both physical and digital spaces, and introduce them to open online communities and resources.