This paper, the first of a two-part article, addresses ways that project-based learning is being used in countries around the world. It introduces Microsoft's worldwide K-12 education initiative, Partners in Learning, and provides some background as to why Microsoft is interested in developing project-based learning curricula for teachers to help them better integrate technology into learning and teaching. Through Partners in Learning (http://www.microsoft.com.ez.statsbiblioteket.dk:2048/partnersinlearning), Microsoft has joined with the International Society for Technology in Education (ISTE) to deliver an interdisciplinary project-based learning course and accompanying teacher training. This paper discusses the partnership with ISTE in creating project-based learning curriculum as part of Partners in Learning and explores the use of the curriculum in Denmark, a country that has a long history of integrating technology into education and is a longtime supporter of project-based learning.