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Understanding Parts and Wholes

Mathematics Grade 4 Difficulty 2/5

Beginning of the lesson

Understanding Parts and Wholes

What You'll Learn: In this lesson, you'll discover what parts and wholes are, how to divide things equally, and why equal parts are so important in mathematics!

What is a Whole?

A whole (целое/ամբողջ) is something complete and undivided. Think of it as one entire thing:

  • One whole pizza
  • One whole apple
  • One whole hour
  • One whole dollar

When we have a whole, we have all of it - nothing is missing!

Mathematical diagram

What is a Part?

A part or fraction (часть, доля/մաս) is a piece of a whole. When we divide a whole into parts, we break it into smaller pieces.

Important: The parts together make up the whole!

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In the full lesson

  • The complete explanation
  • Worked examples
  • Common mistakes and how to avoid them
  • Test questions: 64
  • AI tutor that answers questions about the topic
  • Progress tracking for students, parents and teachers