Rigor in the 6-12 Math and Science Classroom – A Teacher ToolkitBy Barbara R. Blackburn and Abbigail Armstrong(Routledge/Eye On Education, 2019 – Learn more) Reviewed by Jennifer Sexton Barbara Blackburn always provides her readers with solid, easy-to-implement strategies for any classroom. In her latest book, Blackburn and co-author Abbigail Armstrong give clear definitions for “rigor” and how to apply rigorous instruction in any math or science setting in middle or high school. Setting up a rigorous classroom environment that motivates…