What appears new is the apparent contempt that some educators have for their contracted obligation to meet all standards approved by the state and district. I wonder how much these changes and this approach rations or in other ways limits learning by their students.
I doubt any contempt of a contractual obligation is new. Consider the success of a frontier teacher Catherine Beecher, who in the 1800s argued against social pressures for women to be nurses and seamstresses. Consider Sarah Royce, from Grass Valley during the 1800s, who agreed to teach boys and girls to read and write for chicken eggs and preserves (Enss, 200

. These women were up against odds we can only imagine - and I doubt these women were depicted during their lifetimes as heroins. Now - consider how the actions of those times led to changes in salaries for teachers starting in the 1950s (Cameron, 2005, p. 26). The rise of the teachers unions in the 50s and 60s were backlashes against the idea women were subservient to men - leading to a single salary schedule and changes in working conditions. The real contempt during those early days of the union simply never stopped. Instead, teachers have carried on with their grievances for at least 50 years.
References
Cameron, D. (2005). The inside story of the teacher revolution in America.
Enss, C. (200

. Frontier teachers: Stories of heroic women of the old west.