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:

03.8 Matriz Nula (V/F) (10)  

EngiMath Project

OER Preview To the OER

26.05 Método de Gauss 3×3 (parcial) (10)  

EngiMath Project

OER Preview To the OER

12.03 Ridade vahetus (STACK) (2)

EngiMath

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

08.07 A+B/A-B (8)

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

Block Matrix, Operations – Algebraic Addition

Tags

EngiMath, Gate2Math

File
ENG-130-XML-EN.zip

Details

Updated: March 16, 2025 at 6:18 am



Average rating

Title

08.08 k*A (STACK) (4)

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

Block Matrix, Operations – Algebraic Addition

Tags

EngiMath, Gate2Math

File
ENG-131-XML-EN.zip

Details

Updated: March 16, 2025 at 6:18 am



Average rating

Title

08.09 A^T (A,D)(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

Matrix in Blocks, Operations – Transposition

Tags

EngiMath, Gate2Math

File
ENG-132-XML-EN.zip

Details

Updated: March 16, 2025 at 6:18 am



Average rating

Title

08.10 A^T (B, C – 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

Matrix in Blocks, Operations – Transposition

Tags

EngiMath, Gate2Math

File
ENG-133-XML-EN.zip

Details

Updated: March 16, 2025 at 6:18 am



Average rating

Title

09.1_1 Check if they are 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, Definition

Tags

EngiMath, Gate2Math

File
ENG-134-XML-EN.zip

Details

Updated: March 16, 2025 at 6:29 am



Average rating

Title

09.1_2 Check if they are 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, Definition

Tags

EngiMath, Gate2Math

File
ENG-135-XML-EN.zip

Details

Updated: March 16, 2025 at 6:29 am



Average rating

Title

09.2 Inverse A and B – Solve in order a x (2×2) (8)

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, Definition

Tags

EngiMath, Gate2Math

File
ENG-136-XML-EN.zip

Details

Updated: March 16, 2025 at 6:30 am



Average rating

Title

09.3 Inverse A and B – Solve in order of x and y (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, Definition

Tags

EngiMath, Gate2Math

File
ENG-137-XML-EN.zip

Details

Updated: March 16, 2025 at 6:42 am



Average rating

Title

09.4 Inverse per system (STACK 2×2) (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, Definition

Tags

EngiMath, Gate2Math

File
ENG-138-XML-EN.zip

Details

Updated: March 16, 2025 at 6:42 am



Average rating

Title

09.5 (A±B)^{-1} per system (STACK 2×2) (2)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

Group of Questions for Moodle on Matrices – Introuction, 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, Definition, Addition

Tags

EngiMath, Gate2Math

File
ENG-139-XML-EN.zip

Details

Updated: March 16, 2025 at 6:43 am



Average rating