Now it may be time to add Sticky Tape to your play kit.
Identify the patterns that seem to emerge again and again.
Stick them together, so that you can use Them as new units.
You may have also discovered that you can put 4 triangles to form a Tetrahedron.

You may want to cut-and-paste quite a number of Tetrahedra.
You may even find it practical to have a box in which to store them.
Later we will look into the building of quarks, and atoms.
By that time you will find out how many Planck Quanta make up Atoms...