Hello Juan!
We use something at my school called Fountas and Pinell. I basically use this during my guided reading instruction. I absolutely love this system. It really breaks down the reading levels and can give you and instructional levels and independent levels. There is also a writing component that I have been wanting to incorporate. I have included the link below for your review. If you would like anymore info please do not hesitate to contact me. I am also looking for a global partner to share ideas and lessons with.
http://www.fountasandpinnellleveledbooks.com/
Sincerely,
Kristina
