Spectrum 
Geometry, Grade 6 [PDF ebook] 

New to the Spectrum(R) series, Geometry, is a skill-specific math resource designed to completely support and challenge sixth graders in geometry. This 96-page book goes into greater depth about geometry and provides a wide range of examples, practice problems, and assessments to measure progress. The best-selling Spectrum(R) series now provides students with focused practice based on the essential skills they need to master for Common Core success. With explicit skill instruction, step-by-step examples, and ample practice, as well as assessment tools for progress monitoring, students are provided everything they need to master specific math skills. Skill-specific Spectrum(R) books are the perfect supplement for home or school.