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:

09.8 m*A^{-1}±n*A±k*I (STACK, 2×2) (2)

EngiMath Project

OER Preview To the OER

R code (in Jupyter Notebook) for working with built-in datasets

Eva Schirgi

OER Preview To the OER

Kopfrechnen: Wechselgeld_1

Yevheniia Andriichenko, Jochen Brunhorn

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

Logical Challenge – Encrypted message!

Authors

Ana Paula Lopes, Filomena Soares

Educational level

Secondary School

Level

easy

Description

A logical challenge to train your reasoning skills!
Hope you enjoy it!

Licence

CC-BY

Type

Game/Online Exercise

Category

Logic

Keywords

Challenge, Logical, Reasoning

Tags

IPP, P.PORTO, Gate2Math

File
IPP-018-PRE-EN.zip

Details

Updated: March 4, 2025 at 5:54 pm



Average rating

Title

Exponential Function – Introduction

Authors

Ana Paula Lopes, Filomena Soares

Educational level

Secondary School, Vocational School, Higher Education

Level

easy

Description

Introdutory tutorial on Exponential Functions and its distinction from linear and quadratic ones. Sequential PowerPoint presentation with application examples.

Licence

CC-BY

Type

Tutorial

Category

High-school fundamentals

Keywords

Exponential function, Linear/Affine function, Quadratic function

Tags

IPP, P.PORTO, Gate2Math

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

Details

Updated: August 24, 2025 at 3:50 pm



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Title

Exponential Function – Natural Exponential

Authors

Ana Paula Lopes, Filomena Soares

Educational level

Secondary School, Vocational School, Higher Education

Level

easy

Description

Tutorial on Natural Exponential Function, Euler’s Number. Sequential PowerPoint presentation with application examples.

Licence

CC-BY

Type

Tutorial

Category

High-school fundamentals

Keywords

Natural Exponential, Euler’s Number, Exponential Model

Tags

IPP, P.PORTO, Gate2Math

File
IPP-020-PRE-EN.pptx

Details

Updated: March 6, 2025 at 1:23 pm



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Title

Exponential Function – Powers – Review

Authors

Ana Paula Lopes, Filomena Soares

Educational level

Secondary School, Vocational School, Higher Education

Level

easy

Description

Tutorial on the definition of integer power, extension of the notion of power to negative and fractional exponents, and respective operating rules. Sequential PowerPoint presentation with application examples.

Licence

CC-BY

Type

Tutorial

Category

High-school fundamentals

Keywords

Powers, operating rules, negative and fractional exponents

Tags

IPP, P.PORTO, Gate2Math

File
IPP-021-PRE-EN.pptx

Details

Updated: March 6, 2025 at 2:03 pm



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Title

Exponential Function – Generalities and Properties – b < 1

Authors

Ana Paula Lopes, Filomena Soares

Educational level

Secondary School, Vocational School, Higher Education

Level

easy

Description

Tutorial on exponential function with base less than one – decreasing exponential. Sequential PowerPoint presentation with application examples.

Licence

CC-BY

Type

Tutorial

Category

High-school fundamentals

Keywords

Exponential Function, Decreasing Function

Tags

IPP, P.PORTO, Gate2Math

File
IPP-022-PRE-EN.pptx

Details

Updated: March 6, 2025 at 2:03 pm



Average rating

Title

Exponential Function – Generalities and Properties – b > 1

Authors

Ana Paula Lopes, Filomena Soares

Educational level

Secondary School, Vocational School, Higher Education

Level

easy

Description

Tutorial on exponential function with base greater than one – increasing exponential. Sequential PowerPoint presentation with application examples.

Licence

CC-BY

Type

Tutorial

Category

High-school fundamentals

Keywords

Exponential Function, Increasing Function

Tags

IPP, P.PORTO, Gate2Math

File
IPP-023-PRE-EN-1.pptx

Details

Updated: August 24, 2025 at 3:51 pm



Average rating

Title

Logarithmic Function – Introduction

Authors

Ana Paula Lopes, Filomena Soares

Educational level

Secondary School, Vocational School, Higher Education

Level

easy

Description

Introdutory tutorial on the notion of Logarithm and Logarithmic function with a bit of history. Sequential PowerPoint presentation with application examples.

Licence

CC-BY

Type

Tutorial

Category

High-school fundamentals

Keywords

Logarithm definition, Natural and decimal logarithms, Logarithmic function

Tags

IPP, P.PORTO, Gate2Math

File
IPP-024-PRE-EN-1.pptx

Details

Updated: August 24, 2025 at 3:51 pm



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Title

Logarithmic Function – General Information

Authors

Ana Paula Lopes, Filomena Soares

Educational level

Secondary School, Vocational School, Higher Education

Level

easy

Description

Tutorial on logarithmic function and respective general characteristics: Domain, Monotony, Asymptotes, etc. – analysis based on the base value. Sequential PowerPoint presentation with application examples.

Licence

CC-BY

Type

Tutorial

Category

High-school fundamentals

Keywords

Logarithmic Function, Domain, Monotony, Asymptotes

Tags

IPP, P.PORTO, Gate2Math

File
IPP-025-PRE-EN-1.pptx

Details

Updated: August 24, 2025 at 3:52 pm



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Title

Logarithmic Function – Properties

Authors

Ana Paula Lopes, Filomena Soares

Educational level

Secondary School, Vocational School, Higher Education

Level

easy

Description

Tutorial on logarithmic function properties: Basic, Operative and base exchange. Sequential PowerPoint presentation with application examples.

Licence

CC-BY

Type

Tutorial

Category

High-school fundamentals

Keywords

Logarithmic Function, Properties

Tags

IPP, P.PORTO, Gate2Math

File
IPP-026-PRE-EN.pptx

Details

Updated: March 6, 2025 at 9:53 pm



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Title

Avaliação_AULA 25: Sistemas de Equações Lineares – Regra de Cramer (0)  

Authors

EngiMath Project

Educational level

Higher Education

Level

medium

Description

3 Grupos de Questões para Moodle sobre Sistemas de Equações Lineares – Regra de Cramer – Questões com 3 níveis de dificuldade com o objetivo de realizar Avaliação – sem feedback
Nota: Requere uma plataforma Moodle para ser inserido no banco de questões e, eventualmente, poderá ser necessário um plugin/software específico para o seu funcionamento.

Licence

CC-BY

Type

Quiz/Knowledge Control

Category

Linear algebra – Linear systems

Keywords

Determinante principal, Cramer, Matriz do sistema

Tags

EngiMath, Gate2Math, IPP

File
ENG-352-XML-PT-3.zip

Details

Updated: March 8, 2025 at 10:00 pm



Average rating