Exploring Fractions on a Geoboard

Written by Donna Boucher

Donna has been a teacher, math instructional coach, interventionist, and curriculum coordinator. A frequent speaker at state and national conferences, she shares her love for math with a worldwide audience through her website, Math Coach’s Corner. Donna is also the co-author of Guided Math Workshop.

My third-grade team is starting their unit on fractions after the first of the year, so I’ve been checking out resources for them to use.  Our district recently purchased a wonderful book from Math Solutions titled Beyond Pizzas & Pies: 10 Essential Strategies for Supporting Fraction Sense.  I can already tell from Chapter 1 that it’s going to be a great resource for lessons that develop deep understanding.

I want to incorporate some technology into these lessons, and a great resource is the Geoboard app from The Math Learning Center.  It’s one of the many free apps they offer.  You can see from the screenshot below that students can use virtual rubber bands to create and partition figures.  The shading feature helps students visualize fractions.

I am so excited to see how these great resources will help our kiddos develop a deeper understanding of fractions!


  1. Kelly

    Very interesting concept. It was interesting watching the kids to come up with different ways to make half and then prove it to the teacher. Thanks for sharing!
    I’m Not Your Grandpa, I’m Your Teacher

    • Donna Boucher

      My pleasure, Kelly! Definitely a lesson that makes the kiddos think and justify their solution.

  2. Jami Smith

    Hi Donna! Thank you for linking to our app. 🙂 I’m so glad that teachers are finding it useful!

  3. Riki

    Hi Donna, Do you know how to access the video that you have the image of here. I can no longer find it now that Learner.org has been revamped and I love using this video with student teachers. Thank you!


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