Final answer:
To handle additional information that does not fit into an existing mind map, create a separate section rather than skipping or ignoring them, ensuring all relevant information is considered and the usefulness of the mind map is maintained.
Step-by-step explanation:
When you encounter 2-20 pieces of information that do not seem to fit on a mind map, the best course of action is to create a separate section for them. This way, you do not lose any important details or facts that could be crucial to your understanding of the topic.
Instead of skipping or ignoring the information, which can lead to an incomplete understanding, or consolidating them into one node which might lead to oversimplification, creating a separate section ensures all relevant information is included and can be connected back to the main topic if necessary.