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Core subjects include English, reading, and language arts; world languages; arts; mathematics; economics; science; geography; history; and government and civics. Learning and innovation skills are those possessed by students who are prepared for the 21st century and include creativity and innovation, critical thinking and problem solving, and communication and collaboration. Information, media, and technology skills are needed to manage the abundance of information and also contribute to the building of it. These include information literacy; media literacy; and information, communications, and technology (ICT) literacy. Life and career skills are those abilities necessary to navigate complex life and work environments. These include flexibility and adaptability, initiative and self-direction, social and cross-cultural skills, productivity and accountability, and leadership and responsibility.
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Laura M. Greenstein (Assessing 21st Century Skills: A Guide to Evaluating Mastery and Authentic Learning)