Ohio State History Author:Calvert School Calvert School's Ohio State History course has been written in accordance with the Ohio State standards. The 32 lessons are coordinated with the textbook OHIO, which is part of the Steck-Vaughnn PORTRAIT OF AMERICA series. Each lesson contains an Objective, Introduction, Instruction, discussion questions and answers, and suggested enrichment a... more »ctivities. After each lesson, your student should consult the TIMELINE in the back of the manual and fill in any event that has been discussed on the line next to the appropriate date.« less