Here's an example:
Rachael and Maria Elena: In January, the two classes will exchange bios to introduce themselves. The high school students will be writing a paper about the messages they have received about higher education. Then, the college students will write a narrative rhetorical analysis of this paper focused only on highlighting effective rhetorical strategies, written for the high school students as audience. We're thinking of having the college students present these in person if possible. The high school students will use the narrative analysis papers to write a paper analyzing their own essay. In the second unit, we'll team up for a library scavenger hunt to teach library research (the college students will guide their high school partners in completing library research tasks), and in the third unit, the college students will present their public arguments to the high school students. We're also having the students communicate on Edmodo in short posts throughout the semester.