# ALEX Lesson Plan

## Roll an Array

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This lesson provided by:
 Author: Summer Payne System: Mobile County School: Pearl Haskew Elementary The event this resource created for: CCRS General Lesson Information
 Lesson Plan ID: 33014 Title: Roll an Array Overview/Annotation: This lesson presents a hands-on partner activity to introduce second graders to making rectangular arrays. Students will use number dice to roll numbers and then build the coordinating array. An equation will be written to show the sum of the equal addends.This is a College- and Career-Ready Standards showcase lesson plan.
Associated Standards and Objectives
Content Standard(s):
 Mathematics MA2015 (2016) Grade: 2 4 ) Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends. [2-OA4] Alabama Alternate Achievement Standards AAS Standard: M.AAS.2.4- Find the total number of objects in two equal groups (limit of twenty total objects).

Local/National Standards:

Primary Learning Objective(s):

The students will understand that equal addends can be arranged into rectangular arrays and can be used to find the sum. The students will build arrays using manipulatives and write an equation to express the sum.