Design and Technology can be taught as part of a topic or as short series of sessions. It includes the teaching of cooking skills and techniques. The children develop their understanding of nutrition and the importance of a healthy, balanced diet. Another key aspect is the design process. The children have opportunities to explore existing products and then create their own designs using increasingly detailed diagrams. They are encouraged to select the appropriate tools and techniques for making a product. They are taught how to use the tools safely and effectively. At the end of a Design and Technology project, the children evaluate the effectiveness of the finished project.