Comparing and evaluating methods of teaching

Approaches and Methods In Language Teaching A description and analysis· by  Jack C. Richards and Theodore S. Rodgers 

These book provides an overview of main methods in teaching:Oral approach, audiolingual method, Communi cative Language Teaching,  Total Physical Response, The Silent Way ,Community Language Learning, The Natural Approach, Sliggestopedia. There is a short passage taken from these book:

"In the preceding chapters of this book we have examined the fundamental characteristics of eight language teaching proposals in terms of approach, design, and procedure. The use of a common model for the analysis of different teaching philosophies has enabled us to define elements that are common to all approaches and methods and to highlight areas where approaches and methods differ. We have seen that in some cases (e.g., Communicative Language Teaching) teaching proposals have norAnecessarily led to a specific and well-defined method. In other cases (e.g., Silent Way) there is much less room for interpretation, and explicit specifications may be given for classroom practices. One level of application of this model is in the comparison of methods. One might wish to know, for instance, if the procedures of two methods are likely ro be compatible in the classroom or if two methods share a similar set of underlying theoretical assumptions. As an example, let us use the model to compare Total Physical Response (TPR) and Community Language Learning (CLL)."