Gerald Aungst has more than 50 years of personal and professional experience fostering curiosity in learning through play and making stuff. During the last 25 of those years, in his various roles as a classroom teacher, gifted support specialist, administrator, curriculum designer, and professional developer, Gerald has worked to create a rich, vibrant, and equitable learning culture in schools. Gerald is currently a gifted support teacher in the Cheltenham School District in suburban Philadelphia. Gerald is also one of the organizers of Edcamp Philly and a founder of AllAboutExplorers.com. His book, 5 Principles of the Modern Mathematics Classroom, is available from Corwin. You can also connect with Gerald on Twitter at @geraldaungst.