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SELF-ORGANIZED ACTIVITY 55% Personal study. Use of computer software. A very special computer program has been chosen for this course: PAST -Paleontological Statistics-, original by Øyvind Hammer, D.A.T. Harper and P.D. Ryan. There are many very comprehensive programs to perform statistical calculations, PAST has advantages: it is free and students can freely download it from the Internet and install it on their personal computers ( ohammer / past); the program is tailored to its use in paleontology and archeology. This means that it includes some features that do not appear in general purpose programs (such as cladistics, serialization, morphometry, and stratigraphic comparison). Likewise, it does not include features rarely used in our disciplines, which allows the program to be tighter and less confusing. PAST is easy to use, and suitable for introductory courses in quantitative paleontology and archeology. students are required to have a USB PenDrive to load the data being distributed. Data analysis work with materials that students can download at the beginning of the course. It is advisable that students have their own computer in order to do the autonomous activities with the recommended free software. Consultation of specialized bibliography. part of the documentation is in English.