REBT therapists have to assess their clients' disturbances, in terms of the A>B>C model, teach the client that
this model makes sense of their problem, and how to apply it in their lives.
In 'The Practice of REBT', by Albert Ellis and Windy Dryden, this topic is discussed
in detail. You can consult the relevant section of that book online, at Google Books. The book should open at page 96, but if it does not do so, then you can scroll to that page quite easily.
In addition, REBT therapists have to teach their clients the precise details of the philosophy of REBT, so that they
can learn to think for themselves about the strengths and weaknesses of how they are evaluating their life's difficulties,
and how they could reformulate their evaluations to make them more self-supporting.