HMH Biology 1 Year Print/6 Year Digital Class Set Student Resource Package Houghton Mifflin Harcourt Biology This package includes the Online Interactive Teacher Edition, the Downloadable Student Edition PDF, the Performance Expectations Guide Student Edition, and the Engineering Guide SE. Access to online components lasts for the duration of the package. Grades: 9-12 Material Type: Student Materials Format: Mixed Kits ISBN-13/EAN: 9780544846166 ISBN-10: 0544846168 Product Code: 1646813 National/State: National Copyright Year: 2017