These are the generally accepted standards for grade 3 in the US. Students of WPM, go much farther and deeper than these standards, however. For example, our students learn to decompose figures in order to find the area and perimeter as well as exponents, order of operations in algebraic expressions and long division.

Numbers & The Number System

  • Use place value to round numbers to the nearest 10 or 100
  • Understand and use place value with 4 digit numbers
  • Read, write, compare and order 4-digit numbers
  • Use place value to mentally add or subtract 1, 10, 100 or 1000 from any 4-digit number
  • Indentify and explain patterns in numbers or arithmetic

Addition, Subtraction, Multiplication, Division

  • Fluently add and subtract within 1000
  • Fluently multiply and divide within 100.
  • Understand the relationship between multiplication and division.
  • Solve 1- and 2-step problems involving all 4 operations.


  • Use and understand fraction notation.
  • Understand a fraction as a fraction on a number line or scale.
  • Find and recognize equivalent fractions using models
  • Compare two fractions with the same numerator or the same denominator.
  • Partition shapes into parts with equal areas and relate these to fractions.

Measurement & Data

  • Solve problems involving measurements of length, time, liquid volume, mass.
  • Measure and estimate liquid volumes and masses of objects.
  • Read scales involving halves and fourths of units
  • Tell and write the time to the nearest minute.
  • Measure time intervals.
  • Draw a scaled picture graph or scaled bar graph to represent data.
  • Solve 1- and 2-step problems involving data.


  • Become familiar with members of the quadrilateral family and their properties.
  • Describe, analyze and compare properties of 2D shapes.
  • Know and understand different types of angles and find these in 2D shapes.
  • Understand the concept of area and perimeter.
  • Relate area to multiplication and repeated addition.
  • Measure areas by counting squares.
  • Find the areas of rectangles by multiplying side lengths.
  • Find areas of rectilinear shapes by decomposing them into rectangles.
  • Find the perimeter of a range of rectilinear shapes.