the steps and strategies presented here can focus a faculty on upgrading specific elements of the existing curriculum with more engaging and powerful selections. It is a nonthreatening approach that can be worked into the school culture gradually. Rather than a change model, it is a growth model. Change in schools can often feel trendy and superficial, whereas growth is positive and deep. All members of a professional leaning community should arguably be committed to growth, and the model described in this book has proven to be a useful set of practices to develop a 21st century curriculum