Before starting to explain different issues related to geometry, it is important that our children have an idea of the basic concepts of geometry and what points, lines and planes are.
Euclidean geometry is based on the definition of "ideal" geometric objects. The fundamental ones are the point, the line and the plane. None of these objects has volume.
- The point is an element without any dimension which takes up and describe a single position in the space. For example, when we let our pencil fall down on a piece of paper.
- The straight line is a continue and indefinite succession of points in a unique dimension and direction. It does have no beginning or end, so it is infinite.
- The plane is a two-dimensional element in the space. It has infinite points and straight lines.
To explain all these concepts, the use of videos can be a fantastic idea because they catch children's attention and make geometry more attractive and visual to them. Furthermore, another useful activity to learn the concepts can be by drawing the different elements in a piece of paper.
This video explains perfectly all of them
It shows the concepts and their application to real life
Another explanation in Spanish
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