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:

Resolució problema sèries de Fourier

M. Rosa Estela

OER Preview To the OER

Exercitii pentru Lectia 15: Determinante – Introducere 15.10 detA=k, rezolvă pentru x_linear (3×3)

EngiMath

OER Preview To the OER

R code (in Jupyter Notebook) with introduction to data types in R

Eva Schirgi

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

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-1.zip

Details

Updated: May 12, 2025 at 5:04 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-1.zip

Details

Updated: May 12, 2025 at 5:04 pm



Average rating

Title

14.09 Calculate the inverse 3×3 (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-190-XML-EN-1.zip

Details

Updated: May 12, 2025 at 5:05 pm



Average rating

Title

15.01 Choose a determinant (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: A Moodle platform must 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

Determinant, Identification, Notation

Tags

EngiMath, Gate2Math

File
ENG-191-XML-EN-1.zip

Details

Updated: June 5, 2025 at 7:14 am



Average rating

Title

15.02 Det 1×1 (STACK) (2)

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

Determinant, Identification, Notation

Tags

EngiMath, Gate2Math

File
ENG-192-XML-EN-1.zip

Details

Updated: June 5, 2025 at 7:14 am



Average rating

Title

15.03 Det 2×2, calculate (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

Determinant, Matrix 2×2

Tags

EngiMath, Gate2Math

File
ENG-193-XML-EN-1.zip

Details

Updated: June 5, 2025 at 7:14 am



Average rating

Title

15.04 det +/- det (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

Determinant, Matrix 2×2

Tags

EngiMath, Gate2Math

File
ENG-194-XML-EN-1.zip

Details

Updated: June 5, 2025 at 7:14 am



Average rating

Title

15.05 det 2×2 Write (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

Determinant, Matrx 2×2

Tags

EngiMath, Gate2Math

File
ENG-195-XML-EN-1.zip

Details

Updated: June 5, 2025 at 7:31 am



Average rating

Title

15.06 det 2×2, solve in order to x (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

Determinant, Matrix 2×2

Tags

EngiMath, Gate2Math

File
ENG-196-XML-EN-1.zip

Details

Updated: June 5, 2025 at 7:31 am



Average rating

Title

15.07 det 3×3, Sarrus rule (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

Determinant, Matrix 3×3, Sarrus Rule

Tags

EngiMath, Gate2Math

File
ENG-197-XML-EN-2.zip

Details

Updated: June 5, 2025 at 7:31 am



Average rating