Today, there are a multitude of initiatives that
favor the learning of Science, Technology, Engineering, and
Mathematics (STEM) and educational robotics (ER). Thanks
to the available means, it is very easy to access a wide variety
of tools based on programmable hardware. Although there are
many options, most of them either require a high economic
investment or require a great deal of time for the development of
educational activities. Through the results shown in this paper,
the great potential of Scratch as a solution for students who are
just starting out in the knowledge related to STEM and ER is
shown. To show the usefulness of Scratch a course has been
designed, which dedicates three modules to the use of Scratch.
The three modules have different levels of difficulty for the
students, a basic level of difficulty, another intermediate level of
difficulty and a last module with an advanced degree of difficulty.
