Operations and Algebraic Thinking, OA
  • Represent and solve problems involving multiplication and division
  • 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
  • Geometric measurement: understand concepts of area and relate area to multiplication and to addition

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 (Nov-Jan 8 weeks)

Trimester 3 (Feb-Apr/May 10 weeks)

  • 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)
  Inspirational math week from Stanford YouCubed

  My Math: Ch 4, 5, 6, 1, 2, 3, 11

  • 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 13, 10, 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 Critical Key Ideas

Third Grade Math Focus

Third Grade Mathematics Framework

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