Lab 0_6 videos

The trajectory of a ball


A flat surface placed at an angle with respect to the floor, with a ball dispenser at the top, a “goal” at the bottom and a few pieces of wood which modify the ball’s trajectory. The objective is for the ball to come out of the dispenser and end up in the goal.


The proposal requires self-control, the ability to adjust the participants’ intervention and to anticipate the movement of the ball, and above all, perseverance, because it is not easy.


When a few children are involved to try and solve the challenge, very interesting situations can be observed as they must work together in order to reach a common objective.




A panel with pegs where cogs of different sizes can be placed so that the movement can be transmitted from an initial cog to a final one. The challenge is to move the cog which is the furthest away by moving the one which is closest and when this is achieved, a sound can be heard.


The activity allows the ideas concerning the transmission of movement to be explored by means of a structure of different cogs. Both the choice of the peg where the pieces are placed and the size of these cogs condition the transmission of the movement of the final cog. This forces the children to make different attempts and to correct these when things do not work out and this is a typical process of experimental science in order to obtain knowledge.


Seeds. Could this be simpler?


A large container full of seeds of different sizes and different sieves, some let through some of the seeds, others do not.


For the youngest children, it is an opportunity to enjoy the pleasure of sensory contact with the material and to carry out exploratory actions which are natural for their age group. For older children, the challenge consists of separating the seeds with sieves of different sizes. Sensory perception, exploratory play, use of tools, action planning, concentration,...


Colour shadows


Three lights with different coloured filters (the basic light colours are red, green and blue) focused on a single screen in order to observe the shadows that occur when objects are placed in their beam.


Can you can get shadows of a single colour? Does the same object always make the same colour shadow? What happens if you turn off one of the lights? And if we overlap various objects at the same time? 


Playing with shadows, the relationship between the movement of the children and the resulting shadows, teaches them how to “control” the phenomenon, an important step for “understanding” the phenomenon, which in turn will lead to the production of knowledge.