My students in my Spanish AP class recently read "Hombres necios que acusáis" written by Sor Juana Inés de la Cruz. As a writing prompt I had students write a letter to her in which they explained how our society has changed. I used this PPT to model how to write a letter and ideas of what to include. Students enjoyed the visuals and were highly motivated to write the letter. The first letter was a paired work activity but later I had them write letters individually as a quiz. Great formal assessment.