A method such as the following can help to actively engage with topics, even comparatively large subject areas and amounts of material.
Also under the name "Market of Opportunities" (similar to Teaching concept "The learning exhibition as a topic memory"), group work is staged that can be used to develop and multiply expert knowledge.
In a first step, small groups acquire the necessary knowledge to be available as experts on a topic. This can be done on the basis of key questions provided in advance by the teacher.
In a second step, the results are presented to the members of other small groups. The experts are available to answer questions on their topic. They take on the role of a teacher. The exchange of experts between the groups takes place in such a way that all group members are familiar with all topics at the end and become experts in all subject areas.
In a third and final step, the results of all groups are visualised. This typically results in posters based on flipcharts. These can be presented and compared with each other. The teacher can close gaps in the content, expand knowledge or resolve misunderstandings.