This is often the most enjoyable part of the project. The children work autonomously. They choose what they want to take a picture of according to the mathematical task given by the pedagogue. The pedagogue scaffolds if needed. Unexpected obstacles may occur.
It is a good idea to outline the content before filming begins. The children have many mathematical experiences already during the pre-production. They learn about the temporal order of events when creating a ‘storyboard’. And they experience spatial relations, shapes and numbers when making props and scenery.