GPA staff take the marshmallow challenge during PBIS training.

GPA Staff during a PBIS professional development- winners of the first GPA Marshmallow Challenge! From left to right, Mr. Simpson, Ms. Corcoran, Mr. Wolf and Ms. Dyckman.

GPA Staff during a PBIS professional development- winners of the first GPA Marshmallow Challenge! From left to right, Mr. Simpson, Ms. Corcoran, Mr. Wolf and Ms. Dyckman.