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:

Distribuții de probabilități – Test grilă 17

Bocanet Vlad, Serdean Florina

OER Preview To the OER

Algebra liniară, spații vectoriale și matrici – Test grilă 13

Bocanet Vlad, Serdean Florina

OER Preview To the OER

23.13 SEL: Incompatible/Compatible con una única solución o con infinitas soluciones (8)

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

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.2 Calculează det(A)+ -det(B) (STIV)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.2 Calculează det(A)+ -det(B) (STIV)

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-228-XML-RO.zip

Details

Updated: April 15, 2025 at 1:15 pm



Average rating

Title

14.04 Choosing the inverse 2×2 (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

Inverse of a Matrix, Elementary Operations

Tags

EngiMath, Gate2Math

File
ENG-185-XML-EN.zip

Details

Updated: April 15, 2025 at 10:56 am



Average rating

Title

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.3 Găsește x 3×3, (STIV)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.3 Găsește x 3×3, (STIV)

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-229-XML-RO.zip

Details

Updated: April 15, 2025 at 1:15 pm



Average rating

Title

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.4 Triangulară Superioară Inferioară 5×5, (STIV)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.4 Triangulară Superioară Inferioară 5×5, (STIV)

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-230-XML-RO.zip

Details

Updated: April 15, 2025 at 1:16 pm



Average rating

Title

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.5 Găsește det(Inversă) (STIV simplu 1)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.5 Găsește det(Inversă) (STIV simplu 1)

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-231-XML-RO.zip

Details

Updated: April 15, 2025 at 1:16 pm



Average rating

Title

14.06 Calculate the inverse 2×2 (STACK) (1)

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

Inverse of a Matrix, Elementary Operations

Tags

EngiMath, Gate2Math

File
ENG-187-XML-EN.zip

Details

Updated: April 15, 2025 at 10:56 am



Average rating

Title

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.6 Găsește det(Inversă) (STIV simplu 2)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.6 Găsește det(Inversă) (STIV simplu 2)

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-232-XML-RO.zip

Details

Updated: April 15, 2025 at 1:16 pm



Average rating

Title

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.7 det (AA^{-1}) det (A^{-1}A) (STIV)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.7 det (AA^{-1}) det (A^{-1}A) (STIV)

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-233-XML-RO.zip

Details

Updated: April 15, 2025 at 1:16 pm



Average rating

Title

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.8 det(AB^{-1}) (STIV)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 21: Determinante – Proprietăți 4 21.8 det(AB^{-1}) (STIV)

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-234-XML-RO.zip

Details

Updated: April 15, 2025 at 1:16 pm



Average rating

Title

14.07 Choose the inverse 3×3 (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

Inverse of a Matrix, Elementary Operations

Tags

EngiMath, Gate2Math

File
ENG-188-XML-EN.zip

Details

Updated: April 15, 2025 at 10:54 am



Average rating