Slideshow+HD is a useful app which allows users to create short slideshows using their photos on their iPad. You can add in effects from a limited range and you can use music from your iTunes account to accompany the slideshow. One word of warning though, if you upload to YouTube you need copyright free music or you cannot share your video. I created this one straight after downloading the app in around five minutes and I am sure that with more practice it could be a reasonable slideshow. Check out my first attempt! I am sure that students could use this in the classroom.
Check out this video on YouTube: