Identifying cubes, cuboids, cylinders and spheres for Primary 1

Class: Primary One
Term: Third Term
Week: 7
Age: 6 years
Duration: 45 minutes
Subject: General Mathematics
Curriculum Theme: Mensuration and Geometry
Focal competence: Identifying solid shapes in the environment
Key competencies/values: ICT and Digital Competencies
Skills:

• Sorting cubes, cuboids, cylinders and spheres
• Identifying and naming cubes, cuboids, cylinders and spheres
• Distinguishing cuboids and cubes

Previous Lesson: Weight, Comparing Light and Heavy Objects
Topic: Three Dimensional Shapes
Subject Matter: Identifying cubes, cuboids, cylinders, spheres

Specific Objectives

By the end of the lesson, pupils/students should be able to:

Cognitive Domain

• Sort out cubes, cuboids, cylinders and spheres.
• Identify and name cuboids, cubes, cylinders and spheres.
• Distinguish between cuboids and cubes.
• Mention solid shapes in homes and environment.

Psychomotor Domain

• Sort solid shapes according to their shapes.

Reference Materials

The following resources were used in planning this lesson:

• 2025 Revised 9 Years Basic Education Curriculum
• Relevant State Unified Scheme of Work
• Universal Basic Mathematics for Primary 1
• The HeadTeacher Scheme of work

Instructional Materials

The teacher will teach this lesson with the aid of:

• Ludo dice
• Cuboids (e.g., small carton, matchbox)
• Cubes (e.g., sugar cube, building block)
• Spheres (e.g., ball, orange)
• Cylinders (e.g., tin of milk, battery)
• Chart showing different 3D shapes

Rationale for the Lesson

This lesson helps pupils recognise common three-dimensional shapes found in their everyday surroundings. Understanding these shapes builds a foundation for more advanced geometry concepts. It also develops their observation and classification skills, which are essential for problem-solving.

Prerequisite/Previous Knowledge

Pupils can identify basic two-dimensional shapes like circles, squares, and rectangles. They also have a general awareness of objects in their environment.

Lesson Content/Board Summary

Three Dimensional Shapes

What are Three-Dimensional (3D) Shapes?

Three-dimensional shapes are solid shapes that have length, width, and height. They take up space.

Types of Three-Dimensional Shapes

1. Cube

A cube has:

1. All its faces are square.
2. All its sides are equal.
3. It has flat surfaces.

Examples of cubes:

1. Ludo dice
2. Sugar cube
3. Some building blocks

2. Cuboid

A cuboid has:

1. Faces that are rectangles or a mix of rectangles and squares.
2. It has flat surfaces.

Examples of cuboids:

1. Matchbox
2. Book
3. Carton of milk

Distinguishing between Cubes and Cuboids

The main difference is:

1. A cube has all its faces as squares and all sides equal.
2. A cuboid has faces that are mostly rectangles, and its sides are not all equal.

3. Cylinder

A cylinder has:

1. Two flat, circular ends.
2. One curved surface in the middle.
3. It can roll and sometimes stack.

Examples of cylinders:

1. Tin of milk
2. Battery
3. Drinking can

4. Sphere

A sphere has:

1. Only one curved surface.
2. No flat faces or straight edges.
3. It rolls easily.

Examples of spheres:

1. Ball
2. Orange
3. Marble

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Observation, Group Work, Individual Practice.

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Activating prior knowledge

Teacher’s Activity: The teacher greets the pupils and asks them to name some flat shapes they know (e.g., square, circle). The teacher then shows some everyday objects and asks if they are flat or solid.

Pupils’ Activity: Pupils respond by naming flat shapes and observing the objects.

Learning Point: Recalling familiar shapes

Step 2: Identifying Cubes

Time: 7 minutes

Teaching Skill: Demonstration/Identification

Teacher’s Activity: The teacher displays a Ludo dice and other cube-shaped objects. The teacher explains that this shape is called a cube and points out its square faces and equal sides. Pupils are asked to touch and describe the cube.

Pupils’ Activity: Pupils observe the cubes, touch them, and repeat the name “cube.”

Learning Point: Cube identification

Step 3: Identifying Cuboids

Time: 7 minutes

Teaching Skill: Demonstration/Comparison

Teacher’s Activity: The teacher displays a matchbox or a small carton. The teacher explains that this shape is a cuboid and points out its rectangular faces. The teacher guides pupils to compare it with the cube, noting the difference in face shapes.

Pupils’ Activity: Pupils observe the cuboids, compare them with cubes, and repeat the name “cuboid.”

Learning Point: Cuboid identification

Step 4: Distinguishing Cubes and Cuboids

Time: 6 minutes

Teaching Skill: Guided practice/Differentiation

Teacher’s Activity: The teacher guides pupils to work in groups. Each group is given a mix of cubes and cuboids. The teacher instructs them to sort the shapes into two piles: cubes and cuboids, and explain their choices.

Pupils’ Activity: Pupils work in groups to sort the shapes and discuss the differences between cubes and cuboids.

Learning Point: Cubes and cuboids distinction

Step 5: Identifying Cylinders

Time: 6 minutes

Teaching Skill: Demonstration/Observation

Teacher’s Activity: The teacher shows a tin of milk or a battery. The teacher introduces it as a cylinder, highlighting its two flat circular ends and curved body. The teacher demonstrates how it can roll.

Pupils’ Activity: Pupils observe the cylinder, identify its features, and watch it roll. They repeat the name “cylinder.”

Learning Point: Cylinder identification

Step 6: Identifying Spheres

Time: 5 minutes

Teaching Skill: Demonstration/Engagement

Teacher’s Activity: The teacher presents a ball or an orange. The teacher names it a sphere and shows that it has only a curved surface and rolls easily. Pupils are encouraged to hold and feel the spherical objects.

Pupils’ Activity: Pupils observe and handle the spheres, noting their curved surface and ability to roll. They repeat the name “sphere.”

Learning Point: Sphere identification

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. Show me a cube from the objects on the table.
2. What is this shape called? (Teacher points to a cuboid).
3. Can you tell the difference between a cube and a cuboid?
4. Name one object in your home that looks like a sphere.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Shape identification skills

Step 8: Note-Taking

Time: 4 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils to copy the essential Board Summary notes on the names and examples of 3D shapes into their notebooks.

Pupils’ Activity: Pupils copy the notes carefully into their notebooks.

Learning Point: Copying shape notes

Step 9: Conclusion

Time: 3 minutes

Teaching Skill: Consolidation

Teacher’s Activity: The teacher summarises the main points of the lesson, reminding pupils about the four 3D shapes learned and encouraging them to look for these shapes in their environment. The teacher praises pupils for their participation.

Pupils’ Activity: Pupils listen attentively and acknowledge the summary.

Learning Point: Solid shapes in environment

Continuous Assessment/Further Study

Type: Homework

Instruction: Look around your home and draw two objects that look like each of the following shapes:

1. Cube
2. Cuboid
3. Cylinder
4. Sphere

Lesson Keywords

• Cube – A solid shape with six equal square faces.
• Cuboid – A solid shape with six rectangular faces.
• Cylinder – A solid shape with two flat circular ends and one curved side.
• Sphere – A perfectly round solid shape, like a ball.
• 3D Shapes – Shapes that have length, width, and height.

Differentiation

For weaker learners, provide more one-on-one guidance during sorting activities and use larger, more distinct examples of each shape. For faster learners, challenge them to find more examples of each shape in the classroom or to describe the properties of each shape in their own words.

Suggested Lesson Videos

For further understanding, pupils can watch videos on “Identifying 3D shapes for kids” on YouTube.

Teacher Guide for Using This Lesson Plan

Before the lesson, gather a good collection of real-life objects representing cubes (e.g., dice, small box), cuboids (e.g., matchbox, book), cylinders (e.g., tin, battery), and spheres (e.g., ball, orange). Start by reviewing 2D shapes to connect new learning with prior knowledge. During the lesson development, allow ample time for pupils to handle and explore the shapes. Emphasise the differences between cubes and cuboids through direct comparison. Encourage group work for sorting activities to foster peer learning. Guide pupils to copy the Board Summary notes after the main teaching points have been covered and evaluated. Ensure all pupils participate in identifying and naming the shapes. Check for understanding frequently by asking simple questions and providing immediate feedback.