Core knowledge refers to a current textbook series originally written by a collective of former high Year twelve South Australian students of an equivalent name for South Australian Certificate of Education students. The Core data cluster was the primary student collective of its sort and magnitude in Australia, recruiting high students from thirteen faculties across South Australia since 2003. in contrast to alternative similar resources, the Core data subject guides incorporated a novel student perspective, earning praise from the Australian National Innovation Council in 2005 and students and reviewers from South Australia, Victoria, NSW, Singapore, Malaysia and Indonesia. As of 2007, the resources accessible embody Maths Studies, Biology, Physics and Chemistry subject guides.

Writers embody former high students from Annesley faculty, Eynesbury Senior faculty, Glenunga International high school, Murrayville high school, Norwood Morialta high school, Prince Alfred faculty, Pembroke College, Rostrevor faculty, Sacred Heart faculty Senior, St Michael’s faculty, St Peter's faculty, Westminster College and Wilderness College.

As of August 2008, Core data became the only property of Fresnel Learning Pty Ltd, previous finalists within the Adelaide University e-business competition.