This ‘Circle Map’ is originally used in writing narrative. But i think it also works well to prepare topic-talking/speaking, especially for FL learners who are not able to talk or express more fluently in a foreign language.

In the middle of circle, the topic is given, then according to this topic, write down related events which impressed you more, then give a bit more details for each event you listed on the map, (also called “Tell Me More”).