Learn on PengiVocabulary from Classical Roots (Book 6)Chapter 4: Lessons 10-12

Lesson 11: Illuminating

In Lesson 14 of Chapter 4 from Vocabulary from Classical Roots Book 6, Grade 4 students explore the Latin and Greek roots spir (breath/alive), photo (light), and flam (fire) to build vocabulary. Students learn ten words including respiration, photosynthesis, flammable, and inflammation, practicing how root meanings unlock word definitions. Exercises reinforce skills through synonym matching, context clues, and a paragraph completion activity using the lesson vocabulary.

Section 1

The Root 'spir': Breath and Life

Let's breathe some life into your vocabulary with words from the Latin root 'spir,' which means 'breath' or 'alive.'

Key Words

WordDefinition
inspire(v.) to motivate or give hope and courage
perspire(v.) to sweat; to cool the body by giving off water through the pores
respiration(n.) the act of breathing
spirited(adj.) lively, excited, or full of inner drive

Section 2

The Root 'photo': All About Light

Let's shine a light on these words that all come from the Greek root 'photo,' meaning 'light.'

Key Words

WordDefinition
photogenic(adj.) looking attractive in photographs
photosynthesis(n.) the process by which plants use sunlight to make food
telephoto(adj.) relating to a lens that takes close-up pictures of distant objects

Section 3

The Root 'flam': Feeling the Heat

Things are heating up with our next set of words, all related to the Latin root 'flam,' which means 'fire.'

Key Words

WordDefinition
flamingo(n.) a bird with a long neck, long legs, and pink or red feathers
flammable(adj.) able to catch fire easily
inflammation(n.) a condition of soreness, swelling, or irritation

Book overview

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Chapter 4: Lessons 10-12

  1. Lesson 1

    Lesson 10: Belonging

  2. Lesson 2Current

    Lesson 11: Illuminating

  3. Lesson 3

    Lesson 12: Changing

Lesson overview

Expand to review the lesson summary and core properties.

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Section 1

The Root 'spir': Breath and Life

Let's breathe some life into your vocabulary with words from the Latin root 'spir,' which means 'breath' or 'alive.'

Key Words

WordDefinition
inspire(v.) to motivate or give hope and courage
perspire(v.) to sweat; to cool the body by giving off water through the pores
respiration(n.) the act of breathing
spirited(adj.) lively, excited, or full of inner drive

Section 2

The Root 'photo': All About Light

Let's shine a light on these words that all come from the Greek root 'photo,' meaning 'light.'

Key Words

WordDefinition
photogenic(adj.) looking attractive in photographs
photosynthesis(n.) the process by which plants use sunlight to make food
telephoto(adj.) relating to a lens that takes close-up pictures of distant objects

Section 3

The Root 'flam': Feeling the Heat

Things are heating up with our next set of words, all related to the Latin root 'flam,' which means 'fire.'

Key Words

WordDefinition
flamingo(n.) a bird with a long neck, long legs, and pink or red feathers
flammable(adj.) able to catch fire easily
inflammation(n.) a condition of soreness, swelling, or irritation

Book overview

Jump across lessons in the current chapter without opening the full course modal.

Continue this chapter

Chapter 4: Lessons 10-12

  1. Lesson 1

    Lesson 10: Belonging

  2. Lesson 2Current

    Lesson 11: Illuminating

  3. Lesson 3

    Lesson 12: Changing