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:

Avaliação_AULA 04: Matrizes Iguais e Operações com Matrizes – ADIÇÃO (0)  

EngiMath Project

OER Preview To the OER

Basic concepts of topology

M. Rosa Estela

OER Preview To the OER

10. Operações com Matrizes quadradas – Potência de uma Matriz

EngiMath Project

OER Preview To the OER

Total number of OERs published so far:

3621

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

Title

02.8 Text question (long form mxn/remove/columns) (10)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Group of Questions for Moodle on Matrices – Introduction, XML format
– ALL questions have feedback with STEP-by-STEP resolution. 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-072-XML-EN.zip

Details

Updated: March 12, 2025 at 7:48 pm



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Title

03.1 Choosing matrices of order n (10)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Group of Questions for Moodle on Matrices – Introduction, XML format- ALL questions have feedback with STEP-by-STEP resolution. 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 Order

Tags

EngiMath, Gate2Math

File
ENG-073-XML-EN.zip

Details

Updated: March 12, 2025 at 7:47 pm



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Title

03.1 EM Choosing matrices of order n (10)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Group of Questions for Moodle on Matrices – Introduction, XML format
– ALL questions have feedback with STEP-by-STEP resolution. 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 Order

Tags

EngiMath, Gate2Math

File
ENG-074-XML-EN.zip

Details

Updated: March 12, 2025 at 7:47 pm



Average rating

Title

03.2 Main elements (10)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Group of Questions for Moodle on Matrices – Introduction, XML format
– ALL questions have feedback with STEP-by-STEP resolution. 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

Main diagonal, Main elements of a matrix

Tags

EngiMath, Gate2Math

File
ENG-075-XML-EN.zip

Details

Updated: March 13, 2025 at 9:30 am



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Title

03.2 EM Main elements (10)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Group of Questions for Moodle on Matrices – Introduction, XML format
– ALL questions have feedback with STEP-by-STEP resolution. 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

Main diagonal, Main elements of a matrix

Tags

EngiMath, Gate2Math

File
ENG-076-XML-EN.zip

Details

Updated: March 13, 2025 at 9:28 am



Average rating

Title

3.3 Trace of a 2 x 2 Matrix (10)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Group of Questions for Moodle on Matrices – Introduction, XML format
– ALL questions have feedback with STEP-by-STEP resolution. 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

Trace of a Matrix, Main Elements

Tags

EngiMath, Gate2Math

File
ENG-077-XML-EN.zip

Details

Updated: March 13, 2025 at 9:28 am



Average rating

Title

03.4 Trace of a 3 x 3 Matrix (10)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Group of Questions for Moodle on Matrices – Introduction, XML format
– ALL questions have feedback with STEP-by-STEP resolution. 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

Trace of a Matrix, Main Elements

Tags

EngiMath, Gate2Math

File
ENG-078-XML-EN.zip

Details

Updated: March 13, 2025 at 9:29 am



Average rating

Title

03.5 Upper/Lower Triangular Matrix (10)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Group of Questions for Moodle on Matrices – Introduction, XML format
– ALL questions have feedback with STEP-by-STEP resolution. 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

Upper and lower triangular matrix

Tags

EngiMath, Gate2Math

File
ENG-079-XML-EN.zip

Details

Updated: March 13, 2025 at 9:29 am



Average rating

Title

Practising Gaussian elimination

Authors

Xavier Marcote

Educational level

Higher Education

Level

medium

Description

MATLAB code that allows the user to perform on a matrix A (with rational coefficients) Gaussian elimination: successive elementary row operations until getting a matrix in row echelon form (r.e.f.), reduced (r.r.e.f.) or not. At each step of the process, the code shows the actual position of the pivot (which is used to “clean” its column, that is, to make equal to zero its elements distinct from the pivot) and very often presents a couple of options for an elementary row operation, maybe those more natural, from which the user has to choose one: the purpose is to help the users to internalise the way of proceeding in order to learn finally how to use Gaussian elimination by themselves.

Licence

CC-BY

Type

Scripts

Category

Linear algebra – Matrix calculus

Keywords

Elementary operation, Matrix in echelon form, Matrix in reduced echelon form

Tags

UPC, Gate2Math

File
UPC-024-SCR-EN.zip

Details

Updated: April 20, 2025 at 8:09 pm



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Title

LECȚIA 01 – Introducere în matrici 1.1 Alegeți o matrice

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Teste de exersare pentru LECȚIA 01 – Introducere în matrici 1.1 Alegeți o matrice

Licence

CC-BY

Type

Quiz/Knowledge Control

Category

Linear algebra – Matrix calculus

Keywords

matrices, XML, tests, Romanian

Tags

EngiMath, matrices, XML, Moodle, Romanian

File
ENG-001-XML-RO.zip

Details

Updated: April 15, 2025 at 6:22 am



Average rating