Standard

Partition circles and rectangles into two and four equal shares, describe the shares using the words halves, fourths, and quarters, and use the phrases half of, fourth of, and quarter of. Describe the whole as two of, or four of the shares. Understand for these examples that decomposing into more equal shares creates smaller shares.

Student Language:

• "I can understand that "halves" means two equal parts and "fourths" or "quarters" means four equal parts."
• "I can break circles and rectangles into equal parts and use the words whole, halves, fourths, and quarters to talk about them."
• "I can understand that breaking circles or rectangles into more equal parts means that the parts will be smaller."

Explanation

About the Math, Learning Targets, and Rigor

Resources

Videos

• Khan Academy
  • Scroll to 1.G.3, click on skill, find videos on left side of each skill

Extra Practice

• North Carolina Tasks
• Illustrative Math Tasks
• Howard County Tasks
  • Click on 1st grade at bottom, then 1.G.3
• Common Core Sheets