Check out this fun tutorial/review of moon phases provided by the ASPIRE Lab in conjunction with the University of Utah. The moon phase tutorial includes 3 interactive activities for students to check their understanding. CLICK HERE to access the tutorial. The interactive windows will open up when you select the boxes titled "Activity 1", etc. This is a great review tool for those students who are having a hard time understanding moon phases.
The ASPIRE Lab offers several other activities created by teachers for teachers, many of them related to Earth Science.