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I live in New York

I teach 3rd grade

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Rhonda

I live in New Jersey

I teach 6th grade literacy

I am passionate about my students becoming lifelong readers and writers

Beth

I live in Michigan

I teach 3rd grade

I am an enthusiastic teacher and techie, and a mom of three boys

Erin

I live in Michigan

I teach 2nd grade

I am a Tweet loving, technology integrating, mom of two with a passion for classroom design!

John

I live in New York

I teach writing for grades 5-8

I am a sharpener of minds who keeps students' thinking on point

Genia

I live in Michigan

I teach third grade

I am a teacher who loves sparking the curiosity that ignites a child's learning

Kriscia

I live in California

I teach 2nd and 3rd grades

I am an eager educator, on the hunt to find the brilliance in all

Brian

I live in North Carolina

I teach kindergarten

I am a kindergarten teacher who takes creating a fun, engaging classroom seriously

Lindsey

I live in Illinois

I teach 4th grade

I am a theme-weaving, bargain-hunting, creative public educator

Shari

I live in Idaho

I teach kindergarten

I am a wife, mom, and home chef who loves cooking up ways to make learning fun in school

Christy

I live in New York

I teach K-5 technology

I am a proud supporter of American public education and a tech integrationist

Amanda

I live in Illinois

I teach 1st and 2nd grades

I am a jewelry-making, pet-loving, runner, crafter, and bilingual teacher

Allie

I live in Nevada

I teach kindergarten

I am a loving, enthusiastic teacher whose goal is to make learning exciting for every child

Geometry Graffiti — Polygons in the Hallways

By Stacey Burt on December 16, 2011
  • Grades: 6–8

I L-O-V-E teaching geometry. I really do. Maybe it’s because it is that part of mathematics that is so visual. Even the abstractness of polyhedral views can be easily understood with all of the technology and Web sites dedicated to creating 3-D images.

Making the transition from polygons, interior angle sums, exterior angle measurements, and lines of symmetry to polyhedral views can be a bit tricky. One of the final steps I take in preparing my 6th grade students for stretching their perspective and tackling the volume and surface area of these beautiful figures is to create polygon graffiti on the walls of our school’s hallways. Using painter’s tape, protractors, and a graphic organizer, my students select a regular or irregular polygon to replicate in the hallway.

 

 

Polygon Graffiti Requirements

I have had polygons that had vertices on the ceiling as well as polygons that wrapped around corners of corridors. The shapes are actually quite beautiful. There are many possibilities to this culminating activity. Here are the requirements that I set for my students:

  1. Include one side that measures two feet (we know what this means for regular polygons).
  2. Use the equation (n - 2)180 to calculate the sum of the interior angles.
  3. Indicate lines of congruence with green painter’s tape.
  4. Indicate lines of symmetry with dotted pieces of green painter’s tape.
  5. Label the measure of all interior angles.
  6. Post the name of the polygon beside the figure.
  7. Post a graphic organizer with all information completed.

Feel free to use the graphic organizer that I require my students to complete. You may also want to have your students explore this Math Is Fun page before they fill out the polyhedral view for their polygon.

It generally takes about two hours for the students to complete this activity. For those that finish their polygon early, I have other polygon name cards laminated and ready to go for them. Many of my students like the challenge of completing more than one figure, especially the irregular dodecagon and hendecagon (undecagon). I hope you try this with your students. It’s great as a review before standardized testing and as an alternate form of assessment.

Best—

Stacey

Comments (1)

i need help

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