My grandmother taught for over 50 years and HATED this org. She was super based as a woman could be and she would always mention new curriculum she knew to not be true. She was an English teacher and a librarian, EXTREMELY intelligent and VERY WELL READ. She had a quote for everything. And my favorite is
Be not the first by whom the new are tried, Nor yet the last to lay the old aside.
Alexander Pope
Also - "The problem aint what folks know, but what they know that just aint so." -TN proverb