Learn on PengiVocabulary from Classical Roots (Book 5)Chapter 4: Lesson 13-15

Lesson 15: Connecting with Prefixes

In this Grade 3 vocabulary lesson from Vocabulary from Classical Roots Book 5, students learn the meanings of the Latin prefixes com-/con- (together; with) and re- (again; back) and apply them to eight vocabulary words including committee, conjunction, communicate, reflect, and reelect. Exercises guide students through identifying synonyms, using words in context, and sorting prefix spelling variations such as col-, co-, and cor- to understand how these prefixes change form depending on the root they join.

Section 1

Words with the Root 'com-/con-'

Key Words

Let's explore words that bring things together! The root 'com-' or 'con-' means 'together' or 'with,' and you'll see it in words about joining, sharing, and talking.

WordDefinition
committee (n.)A group of people who work together on some matter
communicate (v.)To make known, to share information together
converse (v.)To talk together
conjunction (n.)A joining word; the part of speech that joins other words or groups of words; A joining together

📝Example Usage

  • The sentence needed a conjunction like 'and' or 'but' to join the two clauses.
  • The students conversed about where to place the science fair projects.

Section 2

Words with the Root 're-'

Key Words

Now for words that look back or do something again! The root 're-' means 'again' or 'back,' helping us talk about responses, second chances, and connections.

WordDefinition
reaction (n.)A response; The production of a chemical change in substances
reelect (v.)To vote into office for another term; to chose and elect again
reflect (v.)To bend or throw back light, heat, or sound; To think back about; to consider carefully
relate (v.)To have a connection with; To tell

📝Example Usage

  • She needed to reflect on her decision before giving an answer.
  • When the chairperson tried to help, their immediate reaction was to argue with her.

Book overview

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

Continue this chapter

Chapter 4: Lesson 13-15

  1. Lesson 1

    Lesson 13: Cracking Apart

    LearnPractice
  2. Lesson 2

    Lesson 14: Placing the Foundation

    LearnPractice
  3. Lesson 3Current

    Lesson 15: Connecting with Prefixes

    LearnPractice

Lesson overview

Expand to review the lesson summary and core properties.

Expand

Section 1

Words with the Root 'com-/con-'

Key Words

Let's explore words that bring things together! The root 'com-' or 'con-' means 'together' or 'with,' and you'll see it in words about joining, sharing, and talking.

WordDefinition
committee (n.)A group of people who work together on some matter
communicate (v.)To make known, to share information together
converse (v.)To talk together
conjunction (n.)A joining word; the part of speech that joins other words or groups of words; A joining together

📝Example Usage

  • The sentence needed a conjunction like 'and' or 'but' to join the two clauses.
  • The students conversed about where to place the science fair projects.

Section 2

Words with the Root 're-'

Key Words

Now for words that look back or do something again! The root 're-' means 'again' or 'back,' helping us talk about responses, second chances, and connections.

WordDefinition
reaction (n.)A response; The production of a chemical change in substances
reelect (v.)To vote into office for another term; to chose and elect again
reflect (v.)To bend or throw back light, heat, or sound; To think back about; to consider carefully
relate (v.)To have a connection with; To tell

📝Example Usage

  • She needed to reflect on her decision before giving an answer.
  • When the chairperson tried to help, their immediate reaction was to argue with her.

Book overview

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

Continue this chapter

Chapter 4: Lesson 13-15

  1. Lesson 1

    Lesson 13: Cracking Apart

    LearnPractice
  2. Lesson 2

    Lesson 14: Placing the Foundation

    LearnPractice
  3. Lesson 3Current

    Lesson 15: Connecting with Prefixes

    LearnPractice