## Classification by levels

### Lower Secondary

**REMARK:** The indication level is only intended to suggest that
the following pages contain materials which may be useful in learning and in
teaching some subjects at that level. Notice that the corresponding materials
were not designed to fit into any specific curricula topic, and that an exhibit
from Atractor can contain different levels, usually structured in layers of
increasing difficulty. We think, however, that the indication of a level can
be useful to those who look for materials potentially useful to the teaching
of mathematics, but it is up to the teacher to adapt them to the classroom.

Pages in this category

Areas - Math without words

Introdução ao StarLogo (in Portuguese)

Junior University - Experimenta no Verão

Junior University - Oficinas de Verão

Labirintos Digitais - Gazeta de Matemática, 195/2021 (in Portuguese)

Mathina, aprendendo matemática enquanto lê e joga, revista Educação e Matemática, 2022 (in Portuguese)

Mathina, um livro de historias interativo entre a matemática e a fantasia, Jornal das Primeiras Matemáticas, 2021 (in Portuguese)

Movies produced by Atractor

Notable cases of multiplication

O programa GeClaMini, Jornal das Primeiras Matemáticas, 2019 (in Portuguese)

Operating with fractions - Math without words

Pythagorean Theorem and Trigonometry: Math without words

Quadratic equations - Math without words

Searching digits in the interior of Pi

Simetria: uso do programa GeCla como ferramenta didática (in Portuguese)

Spherical Geometry - teaching materials

The shapes and the numbers

Related pages

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