I picked up this activity the other day from a toy store. I thought it was a tangram, when I got home I discovered it was a set or architect blocks [It didn't say that on the box!!]. Little-N played with it for hours today. The blocks come with a book that has 60 [or more] different models to build. He copied some models from the book but then decided to use his own imagination and came up with a rocket. This is a perfect activity to add in your Montessori homeschooling area or classroom.
Here is the rocket he made.