Food and Nutrition, there are a lot of knowledge is needed to explain with pictures or Shiyi Tu, such as food, body process, involving the structure of cell membranes, nutrients in the body's absorption, distribution, excretion and a series of content, teachers sometimes take longer, painting a picture, thus affecting the other elements of the explanation. multimedia video can greatly improve the capacity of the classroom, making the classroom to enrich the content, so that within a limited time students get more knowledge and information, enhance the students understanding of the theory, which improve classroom results.