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Lesson Plan

Rounding Whole Numbers

It's rounding time. Help young mathematicians learn to round to the nearest ten and hundred with this teacher-approved lesson.
Grade:
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Learning Objectives

Students will be able to round whole numbers to the nearest ten or hundred using a number line as a tool.

Introduction

(5 minutes)
  • Explain that today, the class is going to be talking about rounding numbers.
  • Tell students, "We round numbers all the time. For example, your family might ask you how many students are in your class. You might respond by saying there are about 20 students in your classroom. There may be 19 or 21, but you know there are about 20 students in your classroom, so you round to the nearest ten.
  • Explain that rounding just means figuring out which 10 or 100 is closer to a number.
  • Ask your students to share other examples of rounding.