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Colour a map with the fewest number of colours possible, so that no two adjacent regions have the same colour.
four colour theorem, Europe, North America, map, Earth globe, Earth, map knowledge, blank map, Discrete Mathematics, mathematics
This animation presents the regions, counties and cities of Hungary.
The Möbius strip and the Klein bottle are special two-dimensional surfaces with only one side.
An interesting logical exercise: you have many weights that look the same, you have to find the only one that is different.
The geographical distribution of major (world) religions has been influenced by historical events.
Colouring the vertices, edges and faces of a given cube according to the criteria specified in the exercise.
This creative animation contains several 3D objects for colouring.
Learning about the geographic location, capitals and flags of the world´s countries through exercises in three levels of difficulty.
The surface of a sphere consists of the set of points which are all at the same distance from a given point in space.