Here is a guide put out by the U.S. Department of Education that you might review:
 
Teaching Our Youngest
http://www.ed.gov/teachers/how/early/teachingouryoungest/index.html
 
Additionally, here are some Education.com resources that may offer some insights for you...
 
Ten Signs of a Great Preschool
http://www.education.com/reference/article/Ref_10_Signs_Great/
 
Teaching Young Children Through Work and Play
http://www.education.com/reference/article/Ref_Teaching_Young/
 
Preschool Reading Worksheets and Printables
http://www.education.com/worksheets/preschool/reading/
 
I hope you find the above resources helpful!