The formulation tree comes from my work with children who have experienced developmental trauma. It was developed in the NHS service I worked in and I first used it with foster carers and social workers when I was an assistant psychologist.

The tree is a simple way to develop a formulation (and understanding of a difficulty/behaviour/problem).

It was developed to be used in groups to prompt discussion, understanding and the development of therapeutic intervention. However, I have also used it in collaboration with young people, where they might find it useful to develop self compassion and/or a map for change.
This pack includes a worksheet for use in clinical work, guidance document for professionals for use in teams and tiles from instagram for use in training (please ensure appropriate membership for this usage).