Today we settled the justification and the learning situation of our didactic unit: Life on our planet is a didactic unit through which children must be able to identify and internalize the different elements that make up ecosystems, their characteristics, the animals that constitute it and its main characteristics, fauna and flora, the role of the human being in the ecosystem, etc. On the other hand, we will also work on the basic needs of living beings and the difference between living and inert objects. This didactic unit will have a duration of two weeks and we will work the contents previously proposed with activities and didactic material to get the objectives and ensure that students develop the skills and abilities at the end of the didactic unit. Referring to evaluation, will be carried out progressively through observation and instruments that will allow monitoring of student learning.