Neotrie VR

NeoTrie VR lets you create, manipulate and interact with 3D geometric objects and other 3D models. Teachers can use it to design mathematical activities with text, photos, videos and sounds.

Geometry and modelling

The software covers 2D and 3D geometry, including parallel and perpendicular lines, angles, lengths, areas and volumes. You can work with multiview projection planes and a scanner to study sections and figures, manipulate round bodies and find curved intersections, and construct and study polyhedra such as Platonic solids, pyramids, prisms, antiprisms, Archimedean solids, Johnson solids and Kepler solids. Operations on polyhedra include duality, truncation, rectification and extension.

Other topics include spatial symmetries, translations, rotations, reflections and dilations; geodesic spheres and cupolas; a 3D graphic calculator for curves and parametric surfaces; 2D and 3D geometric fractals; crystalline networks built from fundamental cells; and varied dynamic constructions. The software also includes Euler 3D graphs, such as the Seven Königsberg bridges problem, Hamiltonian graphs in space, such as the Salesman’s problem, and graph coloring in space based on the Four colours theorem.

Create and collaborate

You can explore galleries containing hundreds of pre-designed geometric figures, create and save scenes, and import or export STL objects from other software. A speech recognition system can insert figures into the scene, with compatibility limited to languages supported by the Microsoft API. GeoGebra applets can also be imported.

A multiplayer tool lets users create, play and learn together in the same scene. You can also take photos and record video inside the VR scene.

Learning goals

NeoTrie VR presents plane geometry through a third dimension and supports 3D geometry and modelling for 3D printing. Its activities are intended to develop handicraft and 3D visual skills, stimulate deductive and inductive reasoning, encourage cooperative work and positive interdependence, and motivate pupils through recreational, collaborative and competitive games.