← All Standards

Grade 3

• Computation & Algebraic Thinking

  • 3.CA
  • 3.CA.1
  • 3.CA.2
  • 3.CA.3
  • 3.CA.4
  • 3.CA.5
  • 3.CA.6
  • 3.CA.7
  • 3.CA.8

• Data Analysis

  • 3.DA
  • 3.DA.1

• Geometry

  • 3.G
  • 3.G.1
  • 3.G.2
  • 3.G.3

• Measurement

  • 3.M.5

• Number Sense

  • 3.NS.4
  • 3.NS.5

• Process Standards

  • 3.PS.1
  • 3.PS.3
  • 3.PS.8

Indiana Math Standard: 3.G.2

Identify, describe, and draw points, lines, and line segments using appropriate tools (e.g., ruler, straightedge, and technology), and use these terms when describing two-dimensional shapes.

Lines, Line Segments, Rays, and Infinity!

A lesson about lines, line segments, and rays that avoids dull memorization. Instead, we ponder this delightful question: Which is longer, a ray or a line? Then, kids consider what these different geometric concepts would think about each other.