2D and 3D Shapes · B2 Mathematics

Lesson notes

Learning Objectives

Indicator: B2.3.1.1.1 - Identify the common features or attributes of a collection of 3D objects (spheres, cylinders, cones, pyramids, cubes) of different dimensions or orientations.

By the end of the lesson, learners can:

Name and recognise spheres, cylinders, cones, pyramids and cubes when shown objects of different sizes and turned in different positions (orientations).
Describe the common features or attributes of each 3D object, including the number of faces, the shapes of faces, and the number of corners or vertices.
Sort a collection of 3D objects using one or two features at a time and explain the sorting rule used.
Identify and name at least three examples of these 3D objects found in the classroom or the local community.
Justify why an object belongs to a particular group by referring to its features or attributes.

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Curriculum details

Strand: Geometry and Measurement (Strand 3)
Sub-strand: 2D and 3D Shapes (3.1)
Content standard: B2.3.1.1 - Describe and analyse 2D shapes and 3D objects.
Indicator: B2.3.1.1.1 - Identify the common features or attributes of a collection of 3D objects (spheres, cylinders, cones, pyramids, cubes) of different dimensions or orientations.
Suggested placement: Term 2, Week 11 (Week 23 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. 33
Transcribed from the official NaCCA publication. Check this page against the source.

Exemplars (from the NaCCA curriculum)

E.g. 1. Recognise and name 3D objects having specific features or attributes (number of equal faces, types of faces, number of corners, etc.)
E.g. 2. Sort a collection of 3D objects by 1 or 2 features and explain the sorting rule use
E.g. 3. Identify examples of these 3D objects in the classroom and community