Math Textbooks Take a Critical Mass to Court

The UW's weather guru Cliff Mass is part of a threesome that have appealed to the King County Superior Court to block the Seattle Public Schools' adoption of an inquiry-based math textbook series: Discovering Algebra, Discovering Geometry, and Discovering Advanced Algebra. In a press release, they argue that inquiry-based math instruction has resulted in a growing "achievement gap in mathematics among ethnic minority and free-lunch students in 4th, 7th, and 10th grades." The argument is also playing out in the op-ed pages of the Seattle Times, where a math teacher at Roosevelt responded to Mass's vocal criticism, oddly without including a single math-achievement benchmark that might sway us in favor of the series.