Workbooks for 5 subjects for junior high school students (grades 1-3) Set of cram school workbooks with answer keys and explanations. Each book contains 1 to 50 sessions. For example, Session 1 - English, Math, Science Session 2 - English, Math, Social Studies Session 3 - English, Math, Japanese Language Each session is a set of English, Math, plus one of Science, Social Studies, or Japanese Language. Approximately half of the pages have writing. - Title: Power Train I - Title: Power Train II - Title: Power Train III - - Publisher: Shingaku Plaza Group Thank you for looking.