40 Years of The Least Restrictive Environment: Where Are We Now? The 2015-2016 school year will mark the 40th anniversary of the "Least Restrictive Environment" (LRE). One of the original guiding principles in the education of students with disabilities was Wolfensberger’s (1972) concept of normalization (Fisher, Frey, & Thousand, 2003). The normalization movement was sparked […]