What is the following strategy known as in reading? The text is read more slowly and in detail to get the gist or overall sense of the text.

Skimming involves reading through a text to get the gist or overall sense without focusing on every detail. Although the question says 'more slowly and in detail,' the goal of getting 'the gist or overall sense' is characteristic of skimming. Scanning is for specific information, summarising is producing a shorter version, and scaffolding is providing support. Skimming targets overall meaning.