No other high school math curriculum empowers students to develop the core skills they need like Holt McDougal Algebra 1, Geometry, and Algebra 2. In keeping with the Common Core State Standards, the new, streamlined Student Editions focus on deeper understanding of math strategies and concepts, with implementation of the Standards for Mathematical Practice. Combination of print texts, eTexts, and robust Interactive Online Editions is ideal for high school math courses. - See more at: http://www.hmhco.com/shop/education-curriculum/math/secondary-mathematics/holt-mcdougal-algebra-1-geometry-and-algebra-2#sthash.qDCPvpCs.dpuf