If you have a word document that contains images – there is a simple way to add an element of interactivity to it, without having to alter the appearance of the document in any way.
The basic principle is to have an image (e.g. a photo) and as the learner moves their mouse over the image – it provides a screen tip which could name or describe that part of the image. This is a very basic form of interactivity, but it is very easy to do and is a good starting point for someone if they have existing Words based resources.
This technique can be used to improve the accessibility of a resource, (in that you are providing additional information to the learning – without cluttering the screen with too much information) or to add an element of differentiation (the learner that is struggling to understand the image, can hover their mouse to get more information).
This technique is part of the JISC TechDis accessibility essential series – and can be found at http://www.jisctechdis.ac.uk/AccessibilityEssentials/2007/AE2/modules/authoring%20accessible%20docs/use%20of%20screen%20tips.html
The following video shows how to do this.
In this video, the hyperlink points to the top of the document as that is where the image was. If you are using an image part way down the document, you can either insert a bookmark next to the image to link to, or give the image a heading (and use the styles to make sure it is a heading) and link to that.
You can also use this technique in PowerPoint by just linking to the slide that you are on, as shown in this video.