Lesson Plans for your Moon unit
Casper College's Central Wyoming Board of Cooperative Education has lots of resources available for teaching about the Moon for grades K-12.
Utah State University has compiled a great list of educator resources from NASA.
Teacher Planet has lots of lessons and worksheets.
The Lunar Cycle — In this lesson plan from WGBH and the NSF, students learn about the Moon's changing appearance and how orbital motion causes the Moon's phases.