Author's Purpose

We have been learning author's have a purpose for their writing.  So after each whole group read aloud, we discuss/identify the author's purpose.  Together we discuss and decide if the author wrote their book to inform, persuade or entertain the reader.
Then during Writer's Workshop, I read 'I Want an Iguana'.  After our class discussion, students wrote a letter to their parent 'persuading' them for something...toy/pet/play date etc.  Once finished, students enjoyed playing,  Author's Purpose on the computer.  What a great way to practice this comprehension skill.  They're really getting good at it!