Hi Jamie,
This kind of duplicate content is quite common across the internet, especially on E-commerce sites (manufacturer descriptions) and reseller websites.
Generally if you can't re-word the course outlines, I would focus on ensuring that your page, despite having the duplicate content, still provides the best possible answer to an interested visitor's questions. Re-write the overview to be as informative as possible, and maybe write your own descriptions of each section of the course outlines, if this is feasible. Include visual aids, images, diagrams, charts, any additional information you can which will help the user understand.
Usability is key, so remember the search engines' ultimate aim, to provide the best possible answer to the searcher's query, and make your pages as useful as they can be. If the courses are regulated or provided by a body, link to their website from your pages too, and see if that body has a 'providers' page, or somewhere within their website you can get a link from, if you haven't already.
Hope this helps!
Zoe