Unit 1.1: Rescue Teams: Short Vowels
Unit 1.2: A Lost City: Long Vowels
Unit 1.3: Science for All Time: ei or ie
Unit 1.4: Sharing Traditions: r-controlled vowels
Unit 1.5: Protecting Wildlife: Compound Words
Unit 2.1: Team Spirit: Plurals
Unit 2.2: The Solar System: Inflected Endings
Unit 2.4: Tales of Old: VCCV and VCCCV Patterns
Unit 3.1: The Old Southwest: Accented Syllables
Unit 3.4: Archeology: Prefixes
Unit 4.1: Uncommon Champions: Suffixes -ion
Unit 5.3: Money Matters: Greek Roots
Unit 6.3: Keeping in Touch: Greek Suffixes
Unit 6.5: Volcanoes, Past and Present: Words from Around the World