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Course Library
Explore the Textbook of the Future

GeometryNumbers and AlgebraProbability and Applications

Middle School

Euclidean Geometry

IntroductionEuclid’s AxiomsRuler and Compass Construction
Even More Constructions
Under construction
Angles and Proofs
Under construction
Origami and Paper Folding

Transformations and Symmetry

IntroductionRigid Transformations
Congruence
Under construction
SymmetrySymmetry Groups and WallpapersSymmetry in PhysicsDilations
Similarity
Under construction

Triangles and Trigonometry

IntroductionProperties of Triangles
Midsegments and Similarity
Under construction
Triangle CongruencePythagoras’ Theorem
Isosceles and Equilateral Triangles
Under construction
TrigonometrySine and Cosine Rules

Polygons and Polyhedra

PolygonsQuadrilateralsTessellationsPolyhedra
Nets and Cross Sections
Under construction
Platonic Solids

High School

Circles and Pi

IntroductionDegrees and RadiansTangents, Chords and Arcs
The Circle Theorems
Under construction
Cyclic Polygons
Under construction
Spheres, Cones and CylindersConic Sections

Non-Euclidean Geometry

Spherical GeometryMap ProjectionsHyperbolic GeometryMetric SpacesTopology
Higher Dimensions
Under construction

Fractals

IntroductionThe Sierpinski TriangleThe Mandelbrot Set
Space Filling Curves
Under construction
Popular Courses
Intermediate – Circles and Pi
Spheres, Cones and Cylinders
Intermediate – Sequences and Patterns
Fibonacci Numbers
Intermediate – Graphs and Networks
The Bridges of Königsberg
Advanced – Fractals
The Mandelbrot Set