I am in a similar situation as you and I have been reading this book, as suggested by my district. It's pretty good! The Next Step in Guided Reading by Jan Richardson http://www.amazon.com/Next-Step-Guided-Reading-Assessments/dp/0545133610/ref=sr_1_1?ie=UTF8&qid=1436650635&sr=8-1&keywords=jan+richardson+the+next+step+in+guided+reading