I am involved in service at the departmental, university, national, and international levels with an emphasis on research and graduate education for K-16 STEM teaching, learning, curriculum, and assessment.  I recently served as Vice Chair of the SNR Graduate Committee and Co-Chair of the NARST Outstanding Doctoral Research Award Selection Committee.  I serve on the CIRTL@Nebraska Steering Committee and have organized numerous graduate student research symposia.  I am a member of multiple professional organizations in science education (NARST, ESERA, and NAGT), educational research (AERA), and the learning sciences (ISLS).  Between 2012-2015, I was a member of the editorial board for the Journal of Research in Science Teaching and continue to serve as an ad hoc reviewer for many peer-reviewed journals. These include both science education journals (Science Education, International Journal of Science Education) and non-science education journals that are of interest to science education researchers (Educational Researcher, Elementary School Journal, Journal of Teacher Education, Journal of Environmental Education). I also review conference proposals for the International Conference of the Learning Sciences (ICLS), as well as meetings of NARST and AERA. I am also heavily involved in peer-review of funding proposals for science education research and development at multiple state and federal agencies, including NSF, USDA-NIFA, and the NE Coordinating Commission for Postsecondary Education, as well as within UNL and the Office of Research and Economic Development through my service on the UNL Research Council.  I have also served on other committees for my home institution and professional organizations, provided leadership for multiple search committees, consulted and served on advisory boards for a number of external projects, and participated in local science education outreach activities.