I am wangshaoyi. I am the teacher of high school grade one info tech class. When I know we are going to attend the 2008 expo, I think it is a good chance to practice. First is to practice our ability, second is to strengthen the communication of us. I am the local and know well of tongjiang tremella. When I was young, our family ever plant the tremella. Because this year the output is low, so we give it up. Through this investigation. I understand that modern tremella growing need the advanced scientific method to enhance the production. This activity sensed us a lot.