Middle- and high-school STEM teachers are invited to a free, three-day workshop on using computer simulation and modeling in the classroom.  They will learn how to use StarLogo Nova simulation software and explore the use of computer-science modeling in students’ science investigations.  Sponsored by NSF-funded ECEP and MassCAN, this Project GUTS — Growing Up Thinking Scientifically — workshop will run July 13-15 at Framingham State University.  Register online.  For more information, contact Kelly Powers, CSTA Greater Boston, kelpowers@gmail.com or Jim Stanton, MassCAN, jstanton@edc.org.