Are you looking for a good way to incorporate technology into your class and increase interactivity? CoSketch is a very cool tool. It is like having a whiteboard that all students can collaborate on. You simply go to CoSketch.com and start. There are tools to bring in images like maps, photos or diagrams. It integrates with Google Maps so it is perfect for labeling geographic locations. There are different colors, fonts and writing tools in addition to the image uploads. Finally just share the link and anyone can join and work on the same project. CoSketch is an on the go interactive tool for use in your class.