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3rd Grade Common Core Resources

Here you will find all third grade resources to guide and support mathematics teaching and learning.

These resources are organized by mathematical strand and refer to specific Common Core math content standards.

Quick reference: What are these tools?

Operations and Algebraic Thinking (OA)

Number and Operations in Base Ten (NBT)

Number and Operations - Fractions (NF)

  • 3.NF.1

    Understand a fraction 1/b as the quantity formed by 1 part when a whole is portioned into b equal parts; understand a fraction a/b as the quantity formed by a parts of size 1/b.

    Problems of the Month
    Performance Assessment Tasks
  • 3.NF.2

    Understand a fraction as a number on the number line; represent fractions on a number line diagram

    Formative Re-Engaging Lessons
  • 3.NF.3

    Explain equivalence of fractions in special cases, and compare fractions by reasoning about their size.

    Problems of the Month
    Performance Assessment Tasks
    Formative Re-Engaging Lessons

Measurement and Data (MD)

Geometry (G)