From its inception, CenSSIS has partnered with the Center for the Enhancement of Science and Mathematics Education (CESAME) at Northeastern University K-12 to design, develop and implement the Education Outreach program. This program involves activities in informal as well as formal science education. It spans all K-12 grade levels. The formal science program involves teachers and their students in a variety of activities. One of the main goals of the formal science program is to design and implement models that develop teacher expertise by strengthening their understanding of Science, Technology, Engineering and Mathematics (STEM) content and pedagogy through CenSSIS related materials. We also work with K-12 students to increase their content knowledge and interest in STEM through real world problems related to subsurface sensing and imaging.