How to work figures 3D in the classroom?

To study the 3D figures in Primary Education there are many activities, but then I'm going to explain two different activities in which we can work figures 3D:

Activity 1:

We need to do this activity very simple material such as toothpicks and clay. Students will be joining the toothpicks with the clay, which will be the vertexes. An example of this we can see in the image below:

Depending on the age of the students, the teacher can do before an example for children to see how it is done.

Activity 2:

In this activity, children will need scissors and glue, and the tabs that teacher gives them. From these templates, students cut and can make, for example, a triangular pyramid.

This is a very simple activity in which students can learn how to create a figure 3D, in addition they will be able to see the faces that form the figure easer.

With this activity, student will learn how to create a lot of type 3D figure. 

Tangram

The Tangram is a Chinese very ancient game, which consists in forming silhouettes of figures with the seven pieces given without putting them on top of each other. The 7 pieces, called "Tans", are: 5 triangles of different shape, a square and a parallelogram or rhomboid shape. From these figures, the students have to form different shapes. This game is currently used both as a hobby and as a support in the classroom.

With this resource, students can work management and knowledge of the mathematical elements, such as for example, the different types of geometric elements. In addition, we also put into practice reasoning processes for the resolution of problems.

The level of difficulty of this activity can vary. For younger students, you will be given templates where students may see the shapes of the geometric figures that they should use to make the image, while older, teacher can give students only the image so that they have to guess how it is formed. An example of this we can see in the following images:

Easier:

More difficult:

Presentation

Good day, Bloggers!

This blog is created by Noelia Real. Here is my space where I can write about topics that are, in my point of view, important and interesting in relation to the geometry and mathematics. Some of these issues may be programs with which we can work the geometry, how to work the geometry in a classroom with students, what to see, depending on the age, or other interesting topics that you see in the subject, etc. With this, I take leave until my next entry.

A greeting!