At six weeks it was time to introduce the Octahedron mobile.
"The octahedrons are designed to lay the foundations for future understandings of geometric proportion, relationships and patterns. They are named for the ancient Greek philosopher, Plato" At Home with Montessori.
I hope that you are interested in mobiles, because I intend on showing you each one that we use. Yes, I may indeed have a liking for these Montessori mobiles!
Edited 21 May. A new video (taken on iPhone) showing the Octahedron in action.