ReadWriteThink
Read Write Think: Teaching Audience in Interactive Writing
Lesson which teaches elementary students the importance and significance of keeping the audience in mind when writing. Students write invitation letters and perform extension activities while learning these concepts. Good resource.
Writing Fix
Writing Fix: Revising for a Different Audience [Pdf]
An activity where students are asked to write for a specific audience. CCSS.ELA-Literacy.WHST.6-8.5 Develop and strengthen writing