I love the Montessori geometric solids at any time of year. Montessori geometric solids are beautiful sensorial materials and wonderful for the stereognostic sense (the process of feeling objects and recognizing them based on what is felt). This is a great time of year to place an extra focus on geometric solids with the coming of Easter and fun with ovoid-shaped Easter eggs!
Geometric solids aren’t an easy material to make and are generally purchased by both preschools and homeschools. There are some inexpensive versions available. You’ll find an interesting discussion about buying geometric solids at Homemade Homeschool.
Inexpensive Geometric Solids
Note: It’s best if the geometric solids are all one color. (The traditional geometric solids are all blue for isolation of difficulty so the child doesn’t confuse shape with color).
Here’s a more thorough list of Montessori material suppliers along with comments from parents who purchased from various companies: Where to Buy Montessori Materials.
DIY Geometric Solids
There are tutorials for making at least some of the traditional geometric solids (cube, sphere, cone, cylinder, rectangular prism, triangular prism, ovoid, ellipsoid, triangular-based pyramid, and square-based pyramid) used in Montessori schools. Even if you’ve purchased geometric solids, following the DIY tutorials could be great extensions for children at more advanced levels.
Clay Geometric Solids from Adventures of a Rainbow Mama
Geometric Solids made of polystyrene from WeeWinkles
Paper Models of Polyhedra site
Paper 3-D Models and Cards (Photo from The Pinay Homeschooler)
3D Shapes from The Pinay Homeschooler
Play-Doh and Toothpck Cube (Photo from ROckabye Butterfly)
3D Shapes (made from Play-Doh and Toothpicks) along with geometric solids activities from Rockabye Butterfly
Geometric Solids Presentations and Extensions
Geometric Solids Matching (Photo from The Work Plan)
Geometric Solids from The Work Plan
Geometric Solids presentation and extensions from Montessori Primary Guide
“Teacher Discussion: Presenting Montessori Geometric Solids”
Geometric Solids and Exercises from Basic Montessori: Learning Activities for Under-Fives by David Gettman (on Google books)
Geometric Solid Sorting Cards (Image from Montessori Print Shop)
Geometric Solids Materials from Montessori Print Shop (available for purchase)
Geometric Solids 3-Part Cards (free) from Maybe Montessori
Geometric Solids Materials from Montessori for Everyone (available for purchase)
Geometric Solids Matching Cards from Our Montessori Story
Geometric Solids Extension (Photo from Chasing Cheerios)
Geometric Solids for Baby and Geometric Solids Extension (photo) from Chasing Cheerios
Montessori Sensorial Work: Geometric Solids (presentation) from My Montessori House
Matching Real-Life Objects to the Geometric Solids (Photo from Montessori MOMents)
Matching Real-Life Objects to the Geometric Solids from Montessori MOMents
Geometric Solid Sorting (Image from To the Lesson!)
New Life for our Geometric Solids – Thanks to Montessori Print Shop from To the Lesson!
Geometric Solids Objects (Photo from Inspired Montessori and Arts at Dundee Montessori)
Geometric Solids Objects from Inspired Montessori and Arts at Dundee Montessori
Geometric Solids Sorting (Photo from Mi Escuelita Montessori)
Geometric Solids and Geometric Solids with Photographs and Objects from Mi Escuelita Montessori
Geometric Solids with Mystery Bag from My Montessori Journey using Mystery Bag Tutorial from Montessori by Hand
Geometric Solids and Mystery Bags from Montessori Teachings
Geometric Solids (a variety of extensions) from Parenting in the Moment
There are a number of geometric solids extensions (along with LOTS of other Montessori activities) in John Bowman’s Montessori at Home eBook (available for purchase).
Montessori Monday Link-Up
If you have some Montessori activity trays/lessons to share, please link up below. It’s fine to link up a post from your archives – and you may link up anytime during the week! Please place the Montessori Monday button (using the code from the right sidebar) in your post or put a link back to this post.
Let’s use Montessori Monday to gain inspiration/ideas and to encourage each other! If you would leave an encouraging comment on the post linked up ahead of you (along with any other posts you’re drawn to), that would be awesome!
Thanks for participating! (Note: If you have a giveaway on your blog, please add it to my Family-Friendly Giveaway Linky Page! If you enjoy entering giveaways, you’ll always find some great giveaways there! And be sure to check out my awesome iPad giveaway sponsored by Montessori Compass!)
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I'm Deb Chitwood. My header photo models are my children, Christina, at 1 1/2, my son, Will, at 3, and Christina again at 16. Christina is now 22, and Will is 27. Please see the 
Awesomeness! The photo you linked to is one of my favorite moments with this child. Thank you for linking up to us and for sharing.
Discovering Montessori recently posted..Blast Off!! Behind The Scenes
My pleasure! And thanks for photographing and writing about your geometric solids experiences with your student. That is a great moment!
Deb recently posted..Montessori Monday – Montessori-Inspired Easter Activities
Perfect Timing! My daughter is totally obsessed with geometric solids right now, but ready for some extensions. I actually love the light blue geometric solids that are pictured, though know they are not the “traditional” color.
Maureen Sklaroff recently posted..Montessori Monday–Wood Polishing and Transferring Easter Bunnies
Thanks, Maureen! I’m glad to hear the timing is right! I love the light blue geometric solids, too. They’re all the same color, so it would be totally fine to have geometric solids that color!
Deb recently posted..Montessori Monday – Montessori-Inspired Easter Activities
Thanks for this post! We just started using the geometric solids last week and I am so excited to now have some extension ideas to use with them!
Mieke Giles recently posted..At the End of the Rainbow
Thanks, Mieke! That sounds like fun … I’m glad there are such great extensions that you can easily put together now!
Deb recently posted..Montessori Monday – Montessori-Inspired Easter Activities
Thanks for posting this! I really like some of the extension activities. It’s nice to get an idea of what we have to look forward to!
eryn recently posted..Learning to use tongs
Thanks for your comment, Eryn! Your son is at such a great age … and definitely with so much to look forward to in Montessori!
Deb recently posted..Montessori Monday – Montessori-Inspired Easter Activities
Love this post, I recently purchased these http://www.amazon.com/gp/product/B0034IX85O/ref=as_li_ss_il?ie=UTF8&tag=ourhomblo-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B0034IX85O to use with the light table!! Can’t wait to incorporate these other activities with it!
Jennifer Altman recently posted..Getting Organized (Part 2)
Thanks for your kind comment Jennifer! And thanks for including the link. Those would be awesome for a light table!
Deb recently posted..Montessori Monday – Montessori-Inspired Easter Activities
Wonderful post, Deb! Thanks for putting all of these ideas together – I always enjoy seeing how others incorporate the materials and extensions in their lessons. Thanks, too for featuring my photo!
Sasha recently posted..Spring is Here
My pleasure, Sasha – and thanks for your kind words! Isn’t blogging great?! I love seeing how others are using the materials and extensions, too!
Deb recently posted..Montessori Monday – Montessori-Inspired Easter Activities
What an awesome list of resources and a wonderful link-up. Thanks for sharing.
MissMOE recently posted..The Why and How of History in My Home
Thanks so much for your kind comment, MissMOE! I’m always amazed at how many wonderful ideas and resources are available online now! I have lots of fun as a curator!
Deb recently posted..Montessori Monday – Montessori-Inspired Easter Activities
We have these and I never knew what to do with them! Thank you so much for the ideas – my children are almost too old for them, but I have a new niece that will definitely benefit from my newfound knowledge
Thank you so much for your informative post!
Gidget recently posted..Homeschooling Fantasies
Thanks so much, Gidget! I’m glad your niece will be able to use them!
Deb recently posted..Montessori Monday – Montessori-Inspired Easter Activities
Great post! I’ve used the painted wooden geometric solids in the classroom, but it never even crossed my mind that you could make your own! I’ll be bookmarking this page for the future when my daughter is older! Thanks!
MM recently posted..Affordable Montessori at home WITHOUT the dollar store…
Thanks, MM! I had never thought of it before, either. It’s amazing what can be found online now … I think it would be a fun project!
Deb recently posted..Montessori Monday – Montessori-Inspired Outdoor Environment
Thank you for sharing this round up with Afterschool – so many ideas in one place!
Natalie recently posted..Egg People
Thanks, Natalie! I probably have way too much fun finding all the ideas online! Thanks for hosting Afterschool … lots of great ideas always!
Deb recently posted..Montessori Monday – Montessori-Inspired Outdoor Environment
“Note: It’s best if the geometric solids are all one color. (The traditional geometric solids are all blue for isolation of difficulty so the child doesn’t confuse shape with color).”
I have a nephew who has puzzle shapes that have different colors. I think that’s why he can’t really distinguish colors. He’s focused more on the shapes. I learned something from this one. Thanks.
Thanks for your comment, Val! I love the Montessori principle of isolation of difficulty. It really does make it easier for children to learn new concepts.
Deb recently posted..Montessori Monday – Montessori-Inspired Outdoor Environment
What a wonderful way to explore shapes!
JDaniel4′s Mom recently posted..Read.Explore.Learn.- Hopper’s Easter Surprise
Thanks, JDaniel4′s Mom! I always loved the geometric solids, especially with a mystery bag or a blindfold.
Deb recently posted..Montessori Monday – Montessori-Inspired Outdoor Environment
Great school/learning tools. Are those made of wood? I often see those but in plastic in shops but I prefer the natural and non toxic materials for kids.
Thanks for your comment! The traditional Montessori geometric solids are made of wood, although I’ve seen plastic ones and unpainted wood geometric solids in various places. Typically only the Montessori suppliers sell the ovoid, though.
Deb recently posted..Montessori Monday – Montessori-Inspired Outdoor Environment