The didactic transposition of the microphotographs

The teaching of biology has been using microphotographs for many years as a substitute for the real world, as a means of making complex and difficult observations in the classroom due to a lack of resources, time and space... However, several researches have revealed the existence of a panoply of difficulties linked to this use, from where the postulate that the image is foundational of learning in a pedagogical situation is verified only under certain conditions.