1. Key words for determining the route planning of the zoo: mind maps are arranged in a pattern of up and down distribution, so it is required to determine the core, so it is necessary to understand the route planning of the zoo, list the thinking words of the route, and arrange them in order. 2. Determine the head words of the branch of the zoo mind map: list the head words of the animal species in the zoo, which is equivalent to drawing the scope of the mind map, and on this basis, summarize the relevant contents of the head words in the zoo to make their contents clear. In this way, you can simply and beautifully divide the animal species in the zoo, and at the same time, you can send out cartoon pictures of small animals, which will be more clear at a glance and give people a simple and beautiful feeling. 3. Connect all the key points to the word "zoo" in the middle: sort out all the information in the above steps and connect them to the theme in the middle with regular lines. The middle theme can be written simply with the word "zoo".