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.
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Total number of OERs published so far:
3513To explore and utilize these materials, navigate through our categorized sections or use the search function to find specific OERs of interest.
Title
What is an Imaginary Number?
Authors
Elena Safiulina, Oksana Labanova
Educational level
Higher Education
Level
easy
Description
This interactive infographic presents imaginary numbers. Teachers can integrate this OER into their teaching materials to improve students’ understanding of imaginary numbers.
Licence
CC-BY
Type
Image
Category
High-school fundamentals – Complex numbers
Keywords
Imaginary Number
File
TTK-004-IMG-EN.h5p