Welcome to the Mathematics OER Smart Library! Our library offers a diverse range of materials—including videos, infographics, games, presentations, animations, and more—covering topics such as algebra, calculus, geometry, statistics, and probability. These resources are available in seven languages: English, Estonian, German, Portuguese, Romanian, Catalan, and Spanish. Additionally, our library includes materials accessible to visually impaired and color-blind individuals. These resources are designed to support educators, students, and researchers in secondary, vocational, and higher education institutions.
Random OERs:
Total number of OERs published so far:
3621To explore and utilize these materials, navigate through our categorized sections or use the search function to find specific OERs of interest.
Title
Teorema de Hall (combinatoria)
Authors
Educational level
Secondary School, Higher Education
Level
medium
Description
Explicación del teorema de Hall para decidir si existe o no un transversal de una colección finita de conjuntos con elementos comunes; con ejemplos y cuestiones a contestar online (pptx editable).
Licence
CC-BY
Type
Tutorial
Category
Discrete mathematics – Combinatorics
Keywords
Intersección, Transversal
File
UPC-005-TUT-ES.pptx