• Key Concepts in Grade 3 Math

• Place value

• Place value to the hundred-thousand place

• Rounding whole numbers to the nearest ten or hundred

• Estimating using rounding or compatible numbers

• Modeling with place value blocks for adding and subtracting

• Standard and expanded word form

• Comparison and ordering of larger numbers

• Math fact mastery - addition, subtraction, multiplication and division

• Addition and subtraction of whole numbers

• Using mental math to add and subtract

• Adding and subtracting with regrouping

• Subtracting across zeros

• Multiplication and Division

• Understand that multiplication is repeated addition

• Use arrays as visual models of multiplication

• Commutative and distributive properties of multiplication

• Multiply 3 factors

• Multiples of 10

• Understand that division is sharing and repeated subtraction

• Relationship between multiplication and division

• Fractions

• Fractions as equal parts

• Fractions as parts of a set

• Fractions on a number line

• Comparing fractions with like denominators

• Equivalent fractions

• Mixed numbers

• Geometry

• Lines, segments, angles

• Polygons, including triangles and quadrilaterals, and their characteristics (number of sides, angles, parallel sides, right angles, etc.)

• Perimeter and area

• Customary and metric units of capacity, weight, length

• Time

• Time to half hour, quarter hour, minute

• Units of time: days in a week, hours, etc.

• Elapsed time and working backwards to determine elapsed time

• Problem solving

• Solve word problems using all key concepts

• Use bar diagrams to solve problems and include examples

• Determine if an answer is reasonable or not

• Multiple-step problems