Plymouth University has devised a critical thinking model to help you reflect and analyse a critical incident and how this can be used in your critical writing. This video shows the basics of the model:
There are a selection of books on the Academic Writing webpage of the library to help you with critical thinking
Stella Cottrell, Critical Thinking Skills and and Kate Williams, Getting Critical are practical books that you can work through to improve your skills and gain confidence in this area. The other books listed are specific to critical reading and writing in Social Work.
Oxford Brookes University has developed a guide 'Be more critical' aimed at Health and Social Care students.
Critical Thinking and Professional Judgement for Social Work by 
A Beginner's guide to critical thinking and writing in Health and Social Care by 
Critical Thinking Skills for Your Social Work Degree by A selection of articles and books to help you reflect critically on your practice:
The Social Work pocket guide to reflective practice by 
Reflective Practice and Learning from Mistakes in Social Work by 
The Routledge Handbook of Critical Pedagogies for Social Work by 
