4th Grade Math: Polygons for 4th Grade Students

Students generally begin learning about polygons in 3rd grade, including how to determine perimeters. In 4th grade, your child may build on this knowledge by learning how to find the area of certain polygons. Help him or her work with polygons by using the following tips.

Find available tutors

How Can I Help My 4th Grader Work with Polygons?

Research the 4th Grade Standards

Polygons that 4th graders typically learn about are squares, rectangles, triangles, trapezoids and parallelograms. Curriculums vary, but 4th graders typically review classification of polygons with at least 8-10 sides and find their perimeters. They learn to classify the types of triangles and calculate the areas of squares, rectangles and complex polygons. The concept of symmetry is also presented.

Review Polygons and Their Perimeters

Books can be an enjoyable way to review what your child learned about polygons in 3rd grade and prepare him for what he'll learn in 4th grade. Look for the following titles at your local library or bookstore.

  • The Great Polygon Caper by Karen Ferrell
  • Polygons by David L. Steinecker
  • Where We Play Sports: Measuring the Perimeters of Polygons by Greg Roza
  • Perimeter and Area at the Amusement Park by Dianne Irving

Use Geoboards

A geoboard is used in classrooms for hands-on learning in geometry. They can be purchased at teacher supply stores. You can also simulate geoboards on paper with appropriately spaced dots. Alternatively, you can find virtual ones on the Internet.

Explain to your child that the space between two pegs is one unit. Show her how to make a square or rectangle by placing rubber bands around a group of nails. From there, explain that she can find the perimeter by counting the spaces around the edge and the area by counting the number of squares inside the shape. Ask her to make some shapes on the geoboard and copy them onto graph paper with the name of the shape.

Incorporate Other Learning Activities

To determine the symmetry of polygons and other shapes, your child can cut shapes out of paper and fold each one in the middle to see if the two parts match. For other ways to work with polygons, search online. For example, Math Cats offers a section on their website called the 'Polygon Playground' (www.mathcats.com). Search YouTube.com for songs about polygons that may help your child with retention.

Did you find this useful? If so, please let others know!

Other Articles You May Be Interested In

  • More Blog Articles
    Elementary Math Help: 3rd and 4th Grade

    If you have a third or fourth grade student who is having problems with math, you can help them out at home! This article can show parents how to teach their 3rd and 4th grade students the mathematics skill they need to excel.

  • More Blog Articles
    MIND Games Lead to Math Gains

    Imagine a math teaching tool so effective that it need only be employed twice per week for less than an hour to result in huge proficiency gains. Impossible, you say? Not so...and MIND Research Institute has the virtual penguin to prove it.

We Found 7 Tutors You Might Be Interested In

Huntington Learning

  • What Huntington Learning offers:
  • Online and in-center tutoring
  • One on one tutoring
  • Every Huntington tutor is certified and trained extensively on the most effective teaching methods
In-Center and Online


  • What K12 offers:
  • Online tutoring
  • Has a strong and effective partnership with public and private schools
  • AdvancED-accredited corporation meeting the highest standards of educational management
Online Only

Kaplan Kids

  • What Kaplan Kids offers:
  • Online tutoring
  • Customized learning plans
  • Real-Time Progress Reports track your child's progress
Online Only


  • What Kumon offers:
  • In-center tutoring
  • Individualized programs for your child
  • Helps your child develop the skills and study habits needed to improve their academic performance
In-Center and Online

Sylvan Learning

  • What Sylvan Learning offers:
  • Online and in-center tutoring
  • Sylvan tutors are certified teachers who provide personalized instruction
  • Regular assessment and progress reports
In-Home, In-Center and Online

Tutor Doctor

  • What Tutor Doctor offers:
  • In-Home tutoring
  • One on one attention by the tutor
  • Develops personlized programs by working with your child's existing homework
In-Home Only


  • What TutorVista offers:
  • Online tutoring
  • Student works one-on-one with a professional tutor
  • Using the virtual whiteboard workspace to share problems, solutions and explanations
Online Only

Our Commitment to You

  • Free Help from Teachers

  • Free Learning Materials

  • Helping Disadvantaged Youth