mayra tapia taught here for decades. >> so this was your classroom. we can go inside? it's still open. her old classroom is on the other side of this door. >> this is the first time you've been up here since it closed? >> yes. >> must be a big change for you? >> have you seen inside since then? >> i'm just waiting. >> the school's former students here have been relocated to bigger schools further away. but each day after class, many return to this one, including one of mayra's former students, tanisha. >> yeah, everything's here, everyone knows each other. it's all so familiar like. >> so now, you've been part of this campaign. >> the fight keeps on, and they go on and still here... >> 91 days. >> yeah, 91 days, it's a lot. >> the puerto rican education system has been targeted before. in 2008, teachers led an island-wide strike. three years later, university students clashed with police over fee hikes. manuel natal was a leader of those protests -- and is now the youngest member of congress. he has opposed a plan released by the governor designed to repay creditors on