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:

Übung zu Wahrscheinlichkeiten

Eva Schirgi

OER Preview To the OER

Operações com funções – Composta e Inversa

Ana Paula Lopes, Filomena Soares, Paula Nunes

OER Preview To the OER

17. Determinandid – Laplace’i laienemine (alamdeterminandid)

EngiMath

OER Preview To the OER

Total number of OERs published so far:

3520

To explore and utilize these materials, navigate through our categorized sections or use the search function to find specific OERs of interest.

Title

10. Operations with Square Matrices – Power of a Matrix

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The lesson is presented in the form of a PowerPoint presentation with animation elements, theoretical explanations and practical tasks.

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Power of a matrix, generalization about exponents

Tags

EngiMath, Gate2Math

File
ENG-010-PRE-EN-1.pptx

Details

Updated: May 11, 2025 at 8:19 am



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Title

11. Classification of Other Square Matrices

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The lesson is presented in the form of a PowerPoint presentation with animation elements, theoretical explanations and practical tasks.

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Idempotent, Nilpotent, Involutory, Symmetrical, Orthogonal

Tags

EngiMath, Gate2Math

File
ENG-011-PRE-EN-1.pptx

Details

Updated: May 11, 2025 at 8:19 am



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Title

12. Elementary Operations on the Rows of a Matrix (OEL)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The lesson is presented in the form of a PowerPoint presentation with animation elements, theoretical explanations and practical tasks.

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Elementary operations, Jacob operations, Elementary matrices, EOR

Tags

EngiMath, Gate2Math

File
ENG-012-PRE-EN-1.pptx

Details

Updated: May 11, 2025 at 8:19 am



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Title

13. Row reduction of a matrix to echelon form

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The lesson is presented in the form of a PowerPoint presentation with animation elements, theoretical explanations and practical tasks.

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Triangular matrix, Triangularized matrix

Tags

EngiMath, Gate2Math

File
ENG-013-PRE-EN-1.pptx

Details

Updated: May 11, 2025 at 8:22 am



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Title

14. Applications of elementary operations – Inverse of a matrix

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The lesson is presented in the form of a PowerPoint presentation with animation elements, theoretical explanations and practical tasks.

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Inverse of a matrix, Elementary operations

Tags

EngiMath, Gate2Math

File
ENG-014-PRE-EN-1.pptx

Details

Updated: May 12, 2025 at 6:13 am



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Title

15. Determinants – Introduction

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The lesson is presented in the form of a PowerPoint presentation with animation elements, theoretical explanations and practical tasks.

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Determinant of a square matrix, Sarrus Rule

Tags

EngiMath, Gate2Math

File
ENG-015-PRE-EN-1.pptx

Details

Updated: May 12, 2025 at 8:21 am



Average rating

Title

16. Determinants – Minors and Cofactors

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The lesson is presented in the form of a PowerPoint presentation with animation elements, theoretical explanations and practical tasks.

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Elementary Minors, Cofactors, Algebraic Complements

Tags

EngiMath, Gate2Math

File
ENG-016-PRE-EN.pptx

Details

Updated: May 12, 2025 at 8:22 am



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Title

17. Determinants – Laplace Expansion (Cofactors)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The lesson is presented in the form of a PowerPoint presentation with animation elements, theoretical explanations and practical tasks.

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Laplace expansion, Higher order determinants

Tags

EngiMath, Gate2Math

File
ENG-017-PRE-EN-1.pptx

Details

Updated: May 12, 2025 at 8:22 am



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Title

18. Determinants – Properties 1

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The lesson is presented in the form of a PowerPoint presentation with animation elements, theoretical explanations and practical tasks.

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Exchange of queues, Multiplication of a determinant by a scalar

Tags

EngiMath, Gate2Math

File
ENG-018-PRE-EN-2.pptx

Details

Updated: May 12, 2025 at 8:23 am



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Title

19. Determinants – Properties 2 (direct zero)

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

The lesson is presented in the form of a PowerPoint presentation with animation elements, theoretical explanations and practical tasks.

Licence

CC-BY

Type

Tutorial

Category

Linear algebra – Matrix calculus

Keywords

Equal queues, Proportional queues, null queues

Tags

EngiMath, Gate2Math

File
ENG-019-PRE-EN-1.pptx

Details

Updated: May 12, 2025 at 8:24 am



Average rating