Lesson Plan

Up, Up, and Array

In this lesson, your students will use repeated addition to find the total number of objects in arrays. This lesson will help your students build upon the skills needed to learn multiplication.
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Need extra help for EL students? Try the How Many Are There? pre-lesson.
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Need extra help for EL students? Try the How Many Are There? pre-lesson.

Learning Objectives

Students will be able to describe an array using repeated addition.

The adjustment to the whole group lesson is a modification to differentiate for children who are English learners.
EL adjustments

Introduction

(5 minutes)
Array PracticeWorking with Arrays
  • Give each student 25 counters.
  • Ask your students to make eight groups with three counters in each group.
  • Direct your students to count by threes.
  • Ask them to identify how many counters there are altogether.
  • Write an equation to show this. For example: 3 + 3 + 3 + 3 + 3 + 3 + 3 + 3.
  • Tell students that today they are going to describe an array, or an ordered display, using number sentences.

Beginning

  • Provide students with eight cups and have them place three counters in each cup.
  • Provide students with the skip counting sequence of 3, 6, 9, 12, 15, 18, 21, 24.
  • Provide the definition of array in English and student's home language (L1).

Intermediate

  • Ask students to explain the definition of array to a partner, using their own words.
  • Have students complete a think-pair-share, defining the vocabulary word altogether.