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:

LECȚIA 01 – Introducere în matrici 1.6 Găsește elemntul unei matrice

EngiMath

OER Preview To the OER

Exercitii pentru Lectia 04: Matrici Egale și Operații cu Matrici – Adiția Matricilor 4.2 Matrici egale. Rezolvă pentru x și y

EngiMath

OER Preview To the OER

23.12 SEL: Matriz Ampliada (10)

EngiMath Project

OER Preview To the OER

Total number of OERs published so far:

3520

To explore and utilize these materials, navigate through our categorized sections or use the search function to find specific OERs of interest.

Title

23. System of Linear Equations – Introduction

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The Interactive lesson with examples and questions
Note: Requires specific plugin/software to use/view

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Linear systems

Keywords

Linear equation, Homogeneous systems, classification

Tags

EngiMath, Gate2Math

File
ENG-049-SCM-EN.zip

Details

Updated: February 1, 2025 at 3:49 pm



Average rating

Title

24. Solving systems using the inverse matrix

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The Interactive lesson with examples and questions
Note: Requires specific plugin/software to use/view
“The Interactive lesson with examples and questions
Note: Requires specific plugin/software to use/view”

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Linear systems

Keywords

Systems of linear equations, System matrix, Inverse, Matrix equation

Tags

EngiMath, Gate2Math

File
ENG-050-SCM-EN.zip

Details

Updated: February 1, 2025 at 3:49 pm



Average rating

Title

25. Cramer’s method for solving systems

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The Interactive lesson with examples and questions
Note: Requires specific plugin/software to use/view

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Linear systems

Keywords

Main determinant, Cramer, System matrix

Tags

EngiMath, Gate2Math

File
ENG-051-SCM-EN.zip

Details

Updated: February 1, 2025 at 3:49 pm



Average rating

Title

26. Solving systems by Gauss-Jordan

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The Interactive lesson with examples and questions
Note: Requires specific plugin/software to use/view

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Linear systems

Keywords

System matrix, echelon matrix, indeterminate system

Tags

EngiMath, Gate2Math

File
ENG-052-SCM-EN.zip

Details

Updated: February 1, 2025 at 3:49 pm



Average rating

Title

16. Determinants – Minors and Cofactors

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The Interactive lesson with examples and questions
Note: Requires specific plugin/software to use/view

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Elementary Minors, Cofactors, Algebraic Complements

Tags

EngiMath, Gate2Math

File
ENG-042-SCM-EN.zip

Details

Updated: February 1, 2025 at 3:52 pm



Average rating

Title

Komplexe Zahlen außerhalb der Achsen

Authors

Elena Safiulina, Oksana Labanova, Yevheniia Andriichenko

Educational level

Higher Education

Level

easy

Description

Dieses Lernkartenset zeigt komplexe Zahlen, die auf den Achsen der komplexen Ebene aufgetragen sind, und ermutigt die Studierenden, jeden Punkt in seiner algebraischen Form zu bestimmen und zu schreiben. Diese Übung hilft den Lernenden, ihr Verständnis für komplexe Zahlen in verschiedenen Positionen zu vertiefen und stärkt die Fähigkeiten, sowohl reale als auch imaginäre Komponenten zu interpretieren.

Licence

CC-BY

Type

Game/Online Exercise

Category

High-school fundamentals – Complex numbers

Keywords

Flash Cards, Complex Plane

Tags

Gate2Math, TTK, C02

File
TTK-017-GAM-DE.h5p

Details

Updated: July 4, 2025 at 10:00 am



Average rating

Title

Komplexe Zahlen auf Achsen

Authors

Elena Safiulina, Oksana Labanova, Yevheniia Andriichenko

Educational level

Higher Education

Level

easy

Description

Dieses Lernkartenset zeigt komplexe Zahlen, die auf den Achsen der komplexen Ebene aufgetragen sind, und ermutigt die Studierenden, jeden Punkt in seiner algebraischen Form zu bestimmen und zu schreiben. Diese Übung hilft den Lernenden, ihr Verständnis für komplexe Zahlen in verschiedenen Positionen zu vertiefen und stärkt die Fähigkeiten, sowohl reale als auch imaginäre Komponenten zu interpretieren.

Licence

CC-BY

Type

Game/Online Exercise

Category

High-school fundamentals – Complex numbers

Keywords

Flash Cards, Complex Plane

Tags

Gate2Math, TTK, C02

File
TTK-016-GAM-DE.h5p

Details

Updated: July 4, 2025 at 10:00 am



Average rating

Title

Assessment_CLASS 01: Introduction to matrices

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Three groups of questions for Moodle on matrix definition, elements, rows, and columns. The questions are designed with three levels of difficulty to facilitate assessment and do not include feedback.
Note: It requires a Moodle platform to be inserted into the question bank and, eventually, a specific plugin/software may be necessary for its operation.

Licence

CC-BY

Type

Quiz/Knowledge Control

Category

Linear algebra – Matrix calculus

Keywords

Matrix, Elements of a Matrix, Rows and Columns

Tags

EngiMath, Gate2Math

File
ENG-328-XML-EN.zip

Details

Updated: February 8, 2025 at 5:57 pm



Average rating

Title

Assessment_CLASS 02: Classification of matrices according to size

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Three groups of questions for Moodle on matrix definition, elements, rows, and columns. The questions are designed with three levels of difficulty to facilitate assessment and do not include feedback.
Note: It requires a Moodle platform to be inserted into the question bank and, eventually, a specific plugin/software may be necessary for its operation.

Licence

CC-BY

Type

Quiz/Knowledge Control

Category

Linear algebra – Matrix calculus

Keywords

Square and Rectangular Matrix, Vector Matrix

Tags

EngiMath, Gate2Math

File
ENG-329-XML-EN.zip

Details

Updated: February 8, 2025 at 5:57 pm



Average rating

Title

Assessment_CLASS 03: Classification/names of matrices according to element restrictions

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Three groups of questions for Moodle on classifying matrices according to element restriction. The questions are designed with three levels of difficulty to facilitate assessment and do not include feedback.
Note: It requires a Moodle platform to be inserted into the question bank and, eventually, a specific plugin/software may be necessary for its operation.

Licence

CC-BY

Type

Quiz/Knowledge Control

Category

Linear algebra – Matrix calculus

Keywords

Triangular Matrix, Diagonal Matrix, Identity Matrix, Scalar Matrix, Null Matrix

Tags

EngiMath, Gate2Math

File
ENG-330-XML-EN.zip

Details

Updated: February 8, 2025 at 5:58 pm



Average rating