The main focus of 'Decoding the Author's Purpose: An Interactive Lesson' is to help students identify and describe why an author has written a particular text using various clues from within that text.
The 'Decoding the Author's Purpose: An Interactive Lesson' includes activities like 'Find Four Facts', reading aloud sessions, probing questions after each slide of story reading, and independent practice where students determine the author’s purpose based on clues.
In 'Decoding the Author's Purpose: An Interactive Lesson', student understanding is assessed through probing questions during read-aloud sessions, independent practice activities, and an exit slip provided at end of session for self-assessment.