Clustering（串联）
串联你的意念，由一小组变成一幅图像。先将题目写在纸的中间，用线圈起，然后把联想到的字词写出来，直至你想不到为止，完成后再看看那些资料有用。
例子：
Here is an example of clustering. From this prewriting, the writer could develop an essay about the Lunar New Year Parade in Hong Kong.
Practice：
Choose one of the topics or choose your own topic. Then use clustering to map your ideas about it. Start with your topic in the middle of the page and work out from there.
Keep fit
Environmental protection
Beauty contest
Computer games
