      Module 4
Multiplication and Area

Overview

Throughout this Module, students will:
• understand area of plane figures
• tile with unit squares to determine area
• use cm and inch squares when comparing areas
• distinguish between length and area
• draw area models
• determine area of rectangles by drawing rows and columns
• discover area formulas for rectangles
• reason about area of rectangles
• use distributive property to find total area
• use associative property to determine side lengths of rectangles
• solve word problems involving area
• decompose figures into rectangles to find area
Vocabulary

 Terminology Definition Illustration area the amount of two-dimensional space in a bounded region area model a model for multiplication that relates rectangular arrays to area square unit a unit of area - specifically square centimeters, inches, feet, and meters tile to cover a region without gaps or overlaps unit square a square with side lengths of 1 unit each. It has an area of 1 square unit. whole number an integer, a number without fractions array a set of numbers or objects that follow a specific pattern, a matrix commutative property changing the order of the factors or addends does not change the product or sum distribute e.g. 2 x (3+4) = 2 x 3 +2 x 4 geometric shape a two-dimensional object with a specific outline or form length the straight-line distance between two points multiplication an operation showing how many times a number is added to itself rows and columns arrangement of numbers or information in an array or table DISTRICT

OUR SCHOOLS  Dr. Peter Smith, Superintendent P.O. Box 606 DeWitt, NY 13214 Phone: (315) 445-8300 www.jamesvilledewitt.org

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