DoubelJ

With this plugin you can add a Training and associated Courses to your WordPress site. 
With a widget you can get a sorted list by date of the Training.
In newer versions there is an agenda with the training and an opportunity to add subscription forms at the training and an e-learning module.

JaJaDi Training

With this plugin you can add training and courses to your WordPress site.

rudrainn

TrainingPress is a online course management system plugin for WordPress. This plugin can be used to easily create courses. Each course curriculum can be made with modules, chapters and exercises which can be managed by anyone.
Features of the plugin include:
<pre><code>* Create unlimited courses

* Manage Courses.

* Create and manage Modules.

* Create and manage Chapters.

* Chapter Assignment

* Create and manage Exercises.

* Compose exercise with different types of components like paragraph, video, image, question (with different types).

* Admin can track Course Progress of any user.

* Admin can create 'Sample course' from settings submenu tab inside Training Menu

* Assign author to course / Display author of course on frontend

* Search course functionality on frontend

* Share course on Facebook, Twitter, Google+

* Comments & Rating option

* SEO friendly URLs
</code></pre>

TrainingPress

TrainingPress Plugin can be used to easily create & sell courses online. Each course curriculum can be made with modules, chapters and exercises.

JaJaDi Training vs TrainingPress