To the Instructor
Acknowedgments

Unit 1 Explorers
Lesson 1 Vurke and Wills: Across Australia
Lesson 2 Alexandra David-Neel: A French Woman in Tibet
Lesson 3 Vitus Bering: A cross Siberia to North America
Lesson 4 Robert Scott: A Race to the South Pole
Lesson 5 Into the Deep: Ocean Exploration
Extension Activities
Video Highlights: CNN Video, Deep Sea Exploration
Activity Page: Adventure Trail
Dictionary Page: Understanding Definitions

Unit 2 World Issues
Lesson 1 World Population Growth
Lesson 2 Changes in the Family
Lesson 3 Women and Change
Lesson 4 Rain Forests
Lesson 5 The Garbage Project
Ectension Activities
Video Highlights: CNN Video, Lalita's Story
Activity Page: Crossword Puzzle
Dictionary Page: Working with Word Forms

Unit 3 A Mishmash, or Hodgepodge
Lesson 1 Roadrunners
Lesson 2 Afraid to Fly
Lesson 3 Languages and Language Diversity
Lesson 4 Skyscrapers
Lesson 5 Left-Handedness
Extension Activities
Video Highlights: CNN Video, The Creen Skyscraper
Activity Page: Familiar Phrases
Dictionary Page: Understanding Grammar Codes

Unit 4 Science
Lesson 1 Biospherse in Space
Lesson 2 Earthquakes
Lesson 3 Snow and Hail
Lesson 4 Photovoltaic Cells: Energy Source of the Future
Lesson 5 Biological Clocks
Extension Activites
Video Highlights: CNN Video, Ozone Depletion
Activity Page: Chemical Crossword Puzzle
Dictionary Page: Doing Dictionary Research

Unit 5 Medicine and Health
Lesson 1 Headaches
Lesson 2 Sleep and Dreams
Lesson 3 Health Care and Epidemics
Lesson 4 Medicine: From Leeches to Lasers
Lesson 5 Cholesterol and Heart Disease
Extension Activities
Video Highlights: CNN Video, The Singing Doctor
Activity Page: Who Said What?
Dictionary Page: Learning Acout Word Stress

Vocabulaty
Skills Index