Leading the Blind
Greg Johnson; Melanie Janzen · DOAJ Open Access Articles
In 2009, John Hattie’s book Visible Learning: A Synthesis of over 800 Meta-Analyses Relating to Achievement brought big data to education. In the decade and a half since Visible Learning was originally published it has been aggressively marketed and has now grown into a large suite of branded books, tools, and products. Visible Learning continues to exert in…