The Enable project has developed a suite of training modules for tutors of disabled adult learners. These are available in English, German and Polish. They are free to use, and versions are available that you can download and adapt - please credit the Enable project and website if you do so.
You can find the modules here: http://i-enable.eu/trainingmod - if you prefer not to create a login to the system you can access the modules by clicking 'Login as Guest'
The topics covered include: