Ziploc® brand is redefining what it means to be a super hero and honoring teachers around the country. In celebration of National Superhero Day April 28 and National Teacher Day May 8, Ziploc® brand is unmasking a new initiative, #MoreThanATeacher, which calls upon everyone to thank the real-life super heroes among us – teachers – by helping to provide resources to empower teachers and encourage students and the public to recognize the heroic impact they have on our lives.