Operations and Algebraic Thinking, OA
  • Represent and solve problems involving multiplication and
  • Understand properties of multiplication and the relationship between multiplication and division.
  • Multiply and divide within 100.
  • Solve problems involving the four operations, and identify and explain patterns in arithmetic.
Number and Operations in Base Ten, NBT
  • Use place value understanding and properties of operations to perform multi-digit arithmetic.

Number and Operations - Fractions, NF

  • Develop understanding of fractions as numbers.

Measurement and Data, MD

  • Solve problems involving measurement and estimation of intervals of time, liquid volumes, and masses of objects
  • Represent and interpret data.

Geometry, G

  • Reason with shapes and their attributes.
Mathematical Practices
  1. Make sense of problems and persevere in problem solving.

  2. Reason abstractly and quantitatively.

  3. Construct viable arguments and critique the reasoning of others.

  4. Model with mathematics.

  5. Use appropriate tools strategically.

  6. Attend to precision.

  7. Look for and make use of structure.

  8. Look for and express regularity in repeated reasoning.

Year at a Glance

Trimester 1 (Aug-Oct 10 weeks)

Trimester 2 (Oct-Dec 8 weeks)

Trimester 3 (Jan-May 10 weeks)

YouCubed Week of Inspirational Math
  • Multiplication and Division Relationships: arrays/area models and repeated addition (35 days/7 wks)


  • Place Value and its use in +/- and Addition and Subtraction strategies (15 days/3 wks)
  My Math: Ch 4, 5, 6, 1, 2, 3
  • Multipication and Division Properties and Area (40 days/8 wks)

  My Math: Ch 7, 8, 9
  • Unit Fractions (25 days/5 wks)
  • Measurement - problem solving to build +/- and Meaurement and Data with Fractions (15 days/3wks)
  • Geometry - Shapes and Fractions
    Understand equivalent fractions (10 days/2 wks)
  My Math: Ch 10, 13, 14, 11, 12
  EngageNY Module 5
  Georgia Unit 5

Third Grade Math Overview

GR 3 MATH Guide Overview

GR three 1-pg math guide

Detailed Third Grade Mathematics Guide (password protected)

Mathematical Practice in Action

Third Grade Need to Know - Helpful Tips

Third Grade Math Focus

Third Grade Mathematics Framework

Santa Monica-Malibu Unified School District
1651 16th Street
Santa Monica, California 90404