2D and 3D Shapes · B1 Mathematics

Lesson notes

Learning Objectives

Indicator: B1.3.1.1.2 - Identify three-dimensional shapes, including spheres, cylinders, rectangular prisms (including cubes), and triangular prisms and describe their attributes using formal geometric language

By the end of the lesson, learners can:

Identify and name at least four three-dimensional shapes: sphere, cylinder, rectangular prism (including cube), and triangular prism, when shown real objects or pictures.
Describe the attributes of each 3D shape using formal geometric language such as faces, edges, and vertices.
Sort a given set of 3D shapes using a single feature such as size or shape, and explain the sorting rule they used.
Compare two pre-sorted sets of 3D shapes and state the feature that is different between them.
Justify their reasoning when classifying shapes by giving a clear reason for their choices.

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Curriculum details

Strand: Geometry and Measurement (Strand 3)
Sub-strand: 2D and 3D Shapes (3.1)
Content standard: B1.3.1.1 - Analyse attributes of two-dimensional shapes and three-dimensional objects to develop general concept about their properties
Indicator: B1.3.1.1.2 - Identify three-dimensional shapes, including spheres ones, cylinders, rectangular prisms (including cubes), and triangular prisms and describe their attributes using formal geometric language
Suggested placement: Term 3, Week 3 (Week 27 of the year)
Our suggestion, laid out in curriculum order across three terms of twelve weeks. NaCCA does not fix the week, so follow your school's scheme of learning.
Curriculum reference: Mathematics Curriculum for Primary Schools (Basic 1-3), 2019, p. 16
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1. Sort a given set of 3D shapes using a given single feature or criteria (size, shape, etc.) and explain the sorting rule, feature or criteria used to sort them
E.g. 2. Describe the difference between two given pre-sorted sets of familiar 3D shapes and the feature