Karen Stephens served as director of Illinois State University Child Care Center. Today she writes and delivers staff development training. Sandy Heidemann is the Numbers Work! classroom coordinator and has been in the field of early childhood education for over 35 years. Deborah J. Stewart, M.Ed., hasover 20 years of experience in the field of early childhood education. Karen Nemeth, Ed.M., is an advocate for high quality early learning for dual language learners. She is co-host of the weekly #ELLChat on Twitter.