ThingLink allows you to create interactive images that can be clicked on to access further information. So for example an image of a the body could include clickable links to further information about the heart, brain, lungs etc. A teacher could create a clickable map of a country or even a clickable image that simpy shows the vocabulary. The possibilities are endless and this teacher tech tool is free and very easy to use. It is great both for students and teahers and can be used for group work, projects both in class and at home. This is something I have used both with teachers and students.
Don't forget to watch the videos FULL SCREEN. Just rollover over the controls to see the button.