A set of lecture notes for a course on Geometry for high school teachers.
The notes, written in Dutch, cover various topics in classical
geometry, which are related to the geometry that is tought at dutch high schools.

The notes contain many interactive pictures (Geogebra applets).

This laboratory is designed to experiment and visualize the elemental concepts of differential geometry of curves in the plane or the space.
It is possible to use it in:
http://www.mat.uned.es/GeoCM/2PP/lab_curvas/_apps/matematica3d_20.app/ma...
(please be patient, some times our server is slow)
With this laboratory it possible to visualize the Frenet frame, osculatrix circle, evolute, osculatrix plane, ... and to compute curvature, torsion, arc length, ... of differential curves and to see nice animations.

Wortel TU/e is the Math Learnig Environment for the Eindhoven University of Technology.

It contains many highly interactive theory pages and automatically graded exercises on topics ranging
from basic arithmetic to calculus, linear algebra and abstract algebra at university level.

Wortel TU/e is a moodle LMS in which the MathDox Exercise System is incorporated.

You can register for free.

MuPAD based applets for modular arithmetic used in courses for Linear Algebra, Cryptography and Elementary Number Theory.

GEONExT based Java Applet for visualization of linear independence.

MuPAD based applet for Linear Algebra.

MuPAD based applet for Linear Algebra

MuPAD based applet for matrix calculations.

MuPAD based applet for Linear Algebra (Gauss algorithm).

MuPAD based applet for Linear Algebra