4.10 To investigate and compare 3-dimensional figures

Mathematics

Geometry

Educator section

Memorandum

2.1 3-dimensional One level

2.2 One level 3-dimensional

Leaner section

Content

Activity: to investigate and compare 3-dimensional figures [lu 3.3.1]

Let’s do some building!

1. Work with a partner. Use drinking straws or toothpicks and prestik and see whether you are able to build the following 3-dimensional figures:

1.1 a cube

1.2 a triangular prism

1.3 a pyramid

1.4 any other 3-dimensional figure

2. Now answer the following questions:

2.1 How does a cube differ from a square?

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2.2 How does a triangle differ from a triangular prism?

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Assessment

Learning Outcome 3: The learner will be able to describe and represent characteristics and relationships between two-dimensional shapes and three-dimensional objects in a variety of orientations and positions.

Assessment Standard 3.3: We know this when the learner investigates and compares (alone or as a member of a group or team) two-dimensional shapes and three-dimensional objects studied in this grade according to properties listed above by:

3.3.1: making three-dimensional models using:

• drinking straws to make a skeleton,
• nets provided by the teacher;