We kept it simple for everyone and had three rotations of 15 minutes a piece (in hindsight, we needed more time for each rotation). One rotation was exploring websites we had found that were level-appropriate and one was a reading time with all the book resources I pulled from the shelves. The last rotation was my favorite: a slideshow of water around the world, in various forms and using very thought-provoking pictures with only one or two words on the slide. Stopping every five slides or so to have a 'turn and talk' discussion about what they see is where we are going the next time.
Our hope is that this can become a more consistent supplement to the ongoing curriculum as a means of using our Hub as a continual resource. Fingers crossed!