||This course is for students, researchers, and practitioners who design or evaluate interactive products for children. It covers evaluation methodology for supporting interaction design for products, systems, software applications, toys, games, and specialized appliances intended to be used by children. This field contains a substantial body of knowledge with regard to interaction design and the more narrowly scoped field of usability engineering (UE). Within these areas of practice, and the related research field of HCI, a host of methods are available for evaluating interactive products for children. This course provides an overview of a new and vibrant research field and exposes gaps in current methodologies that future research must address. We also hope it conveys our enthusiasm for this research area, where so much interesting work is taking place and so much still needs to be done.