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:

15.10 detA=k, solves for x_linear (3×3) (10)

EngiMath Project

OER Preview To the OER

08.03 Tamaño de una matriz (por el tipo de sus bloques) (8)

EngiMath Project

OER Preview To the OER

16.11 CA vs. Menor (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

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.2 Determinantul Sistemului

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.2 Determinantul Sistemului

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-312-XML-RO.zip

Details

Updated: April 15, 2025 at 1:30 pm



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Title

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.5 4×4 D_x D_y D_z D_w

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.5 4×4 D_x D_y D_z D_w

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-313-XML-RO.zip

Details

Updated: April 15, 2025 at 1:30 pm



Average rating

Title

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.8 Soluție completă fără formulă, 2×2

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.8 Soluție completă fără formulă, 2×2

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-314-XML-RO.zip

Details

Updated: April 15, 2025 at 1:31 pm



Average rating

Title

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.7 Soluție completă cu formulă, 2×2

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.7 Soluție completă cu formulă, 2×2

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-315-XML-RO.zip

Details

Updated: April 15, 2025 at 1:31 pm



Average rating

Title

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.6 Găsește x y, 2×2

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.6 Găsește x y, 2×2

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-316-XML-RO.zip

Details

Updated: April 15, 2025 at 1:31 pm



Average rating

Title

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.9 Găsește x y z (x_1 x_2 x_3), 3×3

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.9 Găsește x y z (x_1 x_2 x_3), 3×3

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-317-XML-RO.zip

Details

Updated: April 15, 2025 at 1:31 pm



Average rating

Title

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.10 Soluție completă cu formulă, 3×3

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.10 Soluție completă cu formulă, 3×3

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-318-XML-RO.zip

Details

Updated: April 15, 2025 at 1:31 pm



Average rating

Title

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.11 Soluție completă fără formulă, 3×3

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 25: Sisteme de Ecuații Liniare – Metoda Cramer 25.11 Soluție completă fără formulă, 3×3

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-319-XML-RO.zip

Details

Updated: April 15, 2025 at 1:31 pm



Average rating

Title

Exercitii pentru Lectia 26: Sisteme de Ecuații Liniare – Metoda Gauss 26.1 Matrice augmentată 3×3 (A cu zerouri)

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 26: Sisteme de Ecuații Liniare – Metoda Gauss 26.1 Matrice augmentată 3×3 (A cu zerouri)

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-320-XML-RO.zip

Details

Updated: April 15, 2025 at 1:31 pm



Average rating

Title

Exercitii pentru Lectia 26: Sisteme de Ecuații Liniare – Metoda Gauss 26.2 Matrice augmentată vs Sistem 3×3

Authors

EngiMath

Educational level

Higher Education

Level

medium

Description

Exercitii pentru Lectia 26: Sisteme de Ecuații Liniare – Metoda Gauss 26.2 Matrice augmentată vs Sistem 3×3

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-321-XML-RO.zip

Details

Updated: April 15, 2025 at 1:31 pm



Average rating