Geometry in Grade One!

Inside: Two activities for learning about geometry in first grade.
I LOVE teaching geometry. There are so many fun activities you can do with Grade ones. And they don't even realize they're doing math. It's all just fun and games!

Here's what we've been up to.

These monster shapes were SO much fun to make. I got the idea from Em at Curious Firsties and only changed it up a little bit.

It's essentially a listening exercise combined with 2D and 3D shape identification, all rolled into a cute craft.

  1. coloured cardstock
  2. large circle tracers
  3. pre-cut rectangular legs
  4. Hershey Kisses
  5. pom poms
  6. mini marshmallows
  7. sponges pre-cut into cubes

  1. Trace a large circle on your coloured paper and cut out
  2. Put your name on the back
  3. Draw a half circle on the bottom of the large circle
  4. Outline the half circle in black
  5. Glue a cone (i.e., the Hershey Kiss) in the middle of the large circle
  6. Trace 3 circles using your glue stick as a tracer and cut out
  7. Walk around the room and trade your little circles for other colours so they do not match your big circle
  8. Glue the 3 circles above the cone
  9. Glue a sphere (pom pom) on each little circle
  10. Glue the cylinders (marshmallows) in the half circle
  11. Glue the long rectangles on the back of the large circle, underneath the half circle
  12. Glue the cubes onto the bottom of the long rectangles
And voila! The cutest little shape monsters. My kids LOVED them!

Building cubes, rectangular prisms, and pyramids using toothpicks and mini marshmallows is an oldie but a goldie.  

I love how some of the kids took their 3D shapes and combined them into the glorious structures you see above!

Whenever we do this activity I don't give them any instructions other than the shapes have to be 3D. They cannot be lying flat on the table. 

Very quickly someone figures it out and then everyone follows suit. 

That's it for now!

Do you have a favourite geometry lesson? I'd love to hear about it.

Here are some more geometry activities I've pinned.


  1. Love your geometry projects! Love your new blog design!!!

    1. Thanks, Kelly! I got bored and redid it about a month ago:)

  2. What fun monsters! I love those castles too. What lucky first graders!

    1. Thanks Chrissy. They were the kind of lessons where you hear "you're the best teacher ever!" Haha!

  3. I love teaching geometry too. We also made 3D shapes. My kids enjoy sorting and the eating 2D and 3D snacks.

    1. Oooh, the snacks would be lots of fun.

Previous Post Next Post