Surfaces and Curvature in GeometryExplores surfaces with constant null curvature and their development, as well as the construction of networks of curves in hyperbolic paraboloids.
Curves in the Oriented PlaneExplores curves in the oriented plane, discussing orientation, vector spaces, equivalence relations, and curvature of regular curves.
Surfaces in GeometryExplores surfaces with constant curvature, rules between geometric elements, and the generation of sections in geometry.