UNIT ONE. HOW WE LEARN AND HOW WE THINK (PSYCHOLOGY). Part 1. Unit Preview. Part 2. Reading and Vocabulary. Part 3. Writing Sentences with Coordinating Conjunctions. Part 4. Writing Paragraphs. UNIT TWO. THE AFRICAN-AMERICAN EXPERIENCE (US HISTORY). Part 1. Unit Preview. Part 2. Reading and Vocabulary. Part 3. Writing Sentences with Subordinating Conjunctions. Part 4. Writing Narrative Essays. UNIT THREE. LIVE LONG, LIVE WELL (HEALTH). Part 1. Unit Preview. Part 2. Reading and Vocabulary. Part 3. Writing Sentences with Transitions. Part 4. Writing Process Essays. UNIT FOUR. OUR EARTH, OUR RESOURCES, OUR ENVIRONMENT ENVIRONMENTAL STUDIES/GEOGRAPHY). Part 1. Unit Preview. Part 2. Reading and Vocabulary. Part 3. Writing Sentences with Connectors Showing Reasons, Results, or Conditions. Part 4. Writing Cause or Effect Essays. UNIT FIVE. DIFFERENT PEOPLE, DIFFERENT WAYS (CROSS-CULTURAL STUDIES). Part 1. Unit Preview. Part 2. Reading and Vocabulary. Part 3. Writing Sentences with Relative (Adjective) Clauses. Part 4. Writing Opinion Essays. UNIT SIX. THE CHANGING FACE OF BUSINESS (BUSINESS). Part 1. Unit Preview. Part 2. Reading and Vocabulary. Part 3. Writing Sentences with Connectors That Show Contrast. Part 4. Writing Compare/Contrast Essays. APPENDIX.