# 3rd Grade Module 3 Terminology

• Terminology

New or Recently Introduced Terms

§   Even, odd (number)

§   Multiple (specifically with reference to naming multiples of 9 and 10, e.g., 20, 30, 40, etc.)

§  Multiplier (the factor representing the number of units)

§   Product (the quantity resulting from multiplying two or more numbers together)

Familiar Terms and Symbols

§   Array (a set of numbers or objects that follow a specific pattern)

§   Commutative Property (e.g., 2 × 3 = 3 × 2)

§   Distribute (with reference to the distributive property; e.g., in 12 × 3 = (10 ×  3) + (2 × 3), the 3 is multiplier for each part of the decomposition)

§   Divide, division (partitioning a total into equal groups to show how many equal groups add up to a specific number, e.g., 15 ÷ 5 = 3)

§   Equal groups (with reference to multiplication and division; one factor is the number of objects in a group and the other is a multiplier that indicates the number of groups)

§   Equation (a statement that two expressions are equal, e.g., 3 × 4 = 12)

§   Factors (numbers that are multiplied to obtain a product)

§   Multiply, multiplication (an operation showing how many times a number is added to itself, e.g., 5 × 3 = 15)

§   Number bond (model used to show part–part–whole relationships)

§   Ones, twos, threes, etc. (units of one, two, or three)

§   Parentheses (the symbols (  ) used around a fact or numbers within an equation)

§   Quotient (the answer when one number is divided by another)

§   Row, column (in reference to rectangular arrays)

§   Tape diagram (a method for modeling problems)

§   Unit (one segment of a partitioned tape diagram)

§   Unknown (the “missing” factor or quantity in multiplication or division)

§   Value (how much)

Suggested Tools and Representations

§   Array

§  Tape Diagram (a method for modeling problems)