Lesson Plan

Odd One Out

Will one be left out? Students will practice creative problem solving as they strive to answer this question and determine whether a group is even or odd.
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Need extra help for EL students? Try the Comparing Even and Odd Groups pre-lesson.
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Need extra help for EL students? Try the Comparing Even and Odd Groups pre-lesson.

Learning Objectives

Students will be able to determine whether a group of objects has an even or odd number of items using a variety of problem-solving methods.

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

Introduction

(5 minutes)
  • Call students together. Dump out one of the sandwich bags. Ask students to determine how many items there are.
  • Next, ask students to think about different ways that the items can be sorted, such as color and size.
  • Tell students that there is another way that people sometimes sort things. Explain that objects can be sorted into even and odd numbered groupings.
  • Explain to your students that even numbers are those that can be divided by two, so there will be none left over if the group of objects is paired off.
  • Tell your students that odd numbers are those that can’t be divided by two, so there will be one left over if an odd numbered group of objects is paired off.

Beginning

  • Explain what it means to sort prior to the lesson in English and student's home language (L1).
  • Define vocabulary in English and L1 prior to the lesson with corresponding visuals.

Intermediate

  • Have students do a think-pair-share, explaining what even and odd mean in their own words.