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TITLE OF THE INTERVENTION TOOL

From 3D to 2D - Planification of solids

ADDRESS TO

Individual

COGNITIVE AREA AND MATHEMATICAL DOMAIN ADDRESSED

Visual-spatial/Geometry

UNIVERSAL DESIGN FOR LEARNING PRINCIPLES

- Engagement/Sustaining efforts and persistence
- Representation/Comprehension
- Action and expression/Expression and communication
- Action and expression/Executive functions

FORMATIVE ASSESSMENT STRATEGIES

- Engineering classroom discussions
- Activating learners as the owners of their own learning

EQUIPMENT NEEDED

• Pieces of polydron
• Ruler
• Pencil
• Notebook
• Squared paper

ESTIMATED TIME

60 Minutes

DESCRIPTION

Some pieces of polydron are given to the student.
• He/she builds a few cubes.
• With respect to one of the cubes and with the aid of a ruler, the student measures the length of one of the edges and calculates the volume of the cube.
• Using some previously constructed cubes, he/she forms different solids and indicates the volume of each constructed solid.

With this activity, students should conclude that, regardless of the shape of the constructed solid, if they use the same number of cubes, the volumes of the obtained solids are the same.

EDUCATIONAL AIM

The activity aims to overcome the difficulties that students expressed in the questionnaire questions related to volumes and planification of 3D forms.

REFERENCES

Palhares, P., Elementos de matemática para professores do ensino básico. Lisboa: Lidel, (Org.) (2005).

Padrões em Matemática – Uma proposta didática no âmbito do novo programa para o Ensino Básico. Lisboa: Texto Editores, Lda. (ISBN: 978-972-47-4588-6), (2011).

INTERVENTION TOOL (PDF)

Intervention Tool 3.pdf

MONITORING TOOL (PDF)

Monitoring Tool 1.pdf