(updated in 09.02.2021)

Including all the subjects conceived for this site is an ongoing project that will take quite some time to accomplish, so I will detail below those which I consider to be complete (although any of them may be prone to changing):

• modelling:
  • the convex semiregular polyhedra (1 tutorial)
  • the convex quasiregular polyhedra (3 tutorials)
  • the convex regular polyhedra (4 tutorials)
• expanding | the edges of polyhedra:
  • snubbing the cube onto the cuboctahedron (1 video)
• tessellating:
  • in 3D (1 video)
• exploring | theorems:
  • Napoleon’s theorem (3 dynamic and step-by-step applets)
• exploring | plane curves:
  • curves (2 dynamic applets)
  • conics (10 step-by-step constructions, involving circles and ellipses)
• exploring | plane polygons:
  • triangles (8 step-by-step constructions)
  • quadrangles (7 step-by-step constructions)
  • regular pentagon (5 step-by-step constructions)
  • regular hexagon (4 step-by-step constructions)
  • regular octagon (3 step-by-step constructions)
  • regular decagon (2 step-by-step constructions)

I will include more links as soon as I finish them. Thank you for your understanding, and for your interest.