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:

11.08 Determine whether the matrix is ​​orthogonal AA^T=I (10)

EngiMath Project

OER Preview To the OER

06.1 Possibilidade – 4 matrizes extensao (10)  

EngiMath Project

OER Preview To the OER

14.07 Choose the inverse 3×3 (10)

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

LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.2 Alege matricea transpusă (multiple choice)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Teste de exersare pentru LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.2 Alege matricea transpusă (multiple choice)

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-042-XML-RO.zip

Details

Updated: April 15, 2025 at 6:24 am



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Title

LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.3 Scrie A^T (STACK)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Teste de exersare pentru LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.3 Scrie A^T (STACK)

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-043-XML-RO.zip

Details

Updated: April 15, 2025 at 6:24 am



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Title

LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.5 Găsește (A±B)^T, A^T±B^T (STACK)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Teste de exersare pentru LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.5 Găsește (A±B)^T, A^T±B^T (STACK)

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-044-XML-RO.zip

Details

Updated: April 15, 2025 at 6:25 am



Average rating

Title

LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.6 Găsește (kA)^T-kA^T (STACK)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Teste de exersare pentru LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.6 Găsește (kA)^T-kA^T (STACK)

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-045-XML-RO.zip

Details

Updated: April 15, 2025 at 6:25 am



Average rating

Title

LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.7 Which of the following equalities are valid?

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Teste de exersare pentru LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.7 Which of the following equalities are valid?

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-046-XML-RO.zip

Details

Updated: April 15, 2025 at 6:25 am



Average rating

Title

LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.8 Găsiți valorile numerelor reale x, y și z

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Teste de exersare pentru LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.8 Găsiți valorile numerelor reale x, y și z

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-047-XML-RO.zip

Details

Updated: April 15, 2025 at 6:25 am



Average rating

Title

LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.9 AA^T A^TA (STACK)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Teste de exersare pentru LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.9 AA^T A^TA (STACK)

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-048-XML-RO.zip

Details

Updated: April 15, 2025 at 6:25 am



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Title

LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.10 (nA^TA±mI) (nAA^T±mI) (STACK)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Teste de exersare pentru LECȚIA 07 – Operații cu matrici – Transpusa unei matrici 7.10 (nA^TA±mI) (nAA^T±mI) (STACK)

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-049-XML-RO.zip

Details

Updated: April 15, 2025 at 6:25 am



Average rating

Title

Introducere și definiții (Lecțiile 1 – 3) 1.1. Ordinul unei matrice

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Introducere și definiții (Lecțiile 1 – 3) 1.1. Ordinul unei 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-050-XML-RO.zip

Details

Updated: April 15, 2025 at 6:25 am



Average rating

Title

Introducere și definiții (Lecțiile 1 – 3) 1.5. Matrici diagonale, triunghiulare, identitare și nule

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Introducere și definiții (Lecțiile 1 – 3) 1.5. Matrici diagonale, triunghiulare, identitare și nule

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-051-XML-RO.zip

Details

Updated: April 15, 2025 at 6:25 am



Average rating