DRESDEN, Tenn. — In early February, seventh grade math teacher Jamie Gallimore tried something new: She watched herself teach class. The idea had come from Ed Baker, district math coach at Tennessee’s Weakley County Schools. Baker set up an iPad on a cabinet in Gallimore’s classroom at Martin Middle School and hit record.  Gallimore watched […] The post These districts are bucking the national math slump appeared first on The Hechinger Report.