Rounding Whole Numbers

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Develop math reasoning with young students with our Rounding Whole Numbers Lesson Plan, which prepares students to round whole numbers to any place and use rounding for word problems.  Generalize understanding by exploring when it is useful to round numbers and reinforce the strategy for knowing when to round up or down.  Ample practice opportunities are available to solidify practical understanding of rounding.

Rounding Whole Numbers Lesson Plan Includes:

  • Full Teacher Guidelines with Creative Teaching Ideas
  • Instructional Content Pages about Rounding Whole Numbers.
  • Rounding Whole Numbers Cut and Paste Activity
  • Rounding Whole Numbers Practice Worksheet
  • Rounding Whole Numbers Homework Worksheet
  • Answer Keys
  • Common Core State Standards
  • Many Additional Links and Resources
  • Built for Grades 3-4 but can be adapted for other grade levels.

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Description

Develop math reasoning with young students with our Rounding Whole Numbers Lesson Plan, which prepares students to round whole numbers to any place and use rounding for word problems.  Generalize understanding by exploring when it is useful to round numbers and reinforce the strategy for knowing when to round up or down.  Ample practice opportunities are available to solidify practical understanding of rounding.

Sample Classroom Procedure / Teacher Resources Snippet:

  1. Display the jar of candy. Tell students the rounded off number of pieces in the jar to the nearest ten, saying there is about…pieces of candy in the jar. Ask students to then guess the exact number of pieces of candy, writing on a slip of paper and then turning it in to you.
  2. Tell students that if they have the rounded off number: Do they think it was rounded to the nearest ten or one hundred?
  3. Allow for responses and discussion.
  4. Ask students why it is useful to round numbers.
  5. Allow for responses and discussion.
  6. Distribute the Rounding Whole Numbers content pages. Read and review the information with the students. Give additional examples to enhance student understanding.
  7. Stress the rhyme to help students remember whether to add to or to keep the rounded digit the same.
  8. Distribute the Activity page. Read and review the instructions with the students. You may wish to make additional pages for extra practice. Pair students. Distribute scissors.
  9. Allow students sufficient time to complete the activity.
  10. Once completed, students will exchange papers with another pair and will check each other’s completed work.

(continued)

Common Core State Standards:
CCSS.Math.Content.3.NBT.A.1, CCSS.Math.Content.3.OA.D.8, CCSS.Math.Content.4.NBT.A.3, CCSS.Math.Content.4.OA.A.3

Class Sessions (45 minutes):
1 -2 class sessions

Want more math resources? Check out our other Math Lesson Plans!

Additional information

Grade Level

3rd Grade, 4th Grade

Subject

Math