Exploring Shapes in Everyday Objects Mathematics Primary 2 Third Term Lesson Notes Week 10
Subject: Mathematics
Class: Primary 2
Term: Third Term
Week: 10
Topic: Shapes (cube, cuboid, and cylinder)
Sub-topic: Identifying shapes in everyday objects, comparing shapes, studying a chart on shapes
Duration: 45 minutes
Behavioral Objectives:
- Pupils will be able to identify objects in their homes that have the shapes of cube, cuboid, and cylinder.
- Pupils will be able to compare flat-faced objects with curved surfaces and count the edges.
- Pupils will be able to study a chart on shapes and identify the number of flat faces, edges, and curved surfaces of different shapes.
Keywords: Cube, cuboid, cylinder, flat faces, curved surfaces, edges
Entry Behaviour: Pupils have prior knowledge of basic shapes such as square, rectangle, and circle.
Learning Resources and Materials:
- Chart on shapes (cube, cuboid, cylinder, and sphere)
- Real-life objects in shapes of cube, cuboid, and cylinder
- Pictures of different shapes
Building Background / Connection to Prior Knowledge:
- Review basic shapes with pupils, such as square, rectangle, and circle.
- Ask pupils to identify these shapes in objects around them.
Embedded Core Skills: Critical thinking, observation, and discussion.
Learning Materials: Chart on shapes, objects in shapes of cube, cuboid, and cylinder, pictures of different shapes.
Reference Books: Lagos State Scheme of Work
Instructional Materials: Chart on shapes, real-life objects, pictures of shapes
Content:
- Identifying shapes in everyday objects (cube, cuboid, and cylinder)
- Comparing flat-faced objects with curved surfaces
- Studying a chart on shapes to identify the number of flat faces, edges, and curved surfaces
- Cube Shape:
- Description: A cube has 6 flat faces, 12 edges, and 8 corners.
- Examples: Look for items like a Rubik’s cube, dice, or a box.
- Emoji: 🎲
- Cuboid Shape:
- Description: A cuboid has 6 flat faces, 12 edges, and 8 corners. The faces are rectangles.
- Examples: You may find items like a book, a cereal box, or a brick.
- Emoji: 📦
- Cylinder Shape:
- Description: A cylinder has 2 flat circular faces and 1 curved surface around its middle.
- Examples: Look for items like a can of soda, a toilet paper roll, or a water bottle.
- Emoji: 🥤
- Sphere Shape:
- Description: A sphere is a perfectly round shape with a curved surface and no edges.
- Examples: You can find items like a ball, an orange, or a marble.
- Emoji: ⚽
- Comparing Shapes:
- Activity: Compare the shapes you find at home.
- Compare: Check how many flat faces, edges, and curved surfaces each object has.
- Examples:
- For a cube, count the 6 flat faces and the 12 edges.
- For a cylinder, look at the 2 flat circular faces and the curved surface.
- For a sphere, observe the smooth, curved surface without any edges.
- Study a Chart:
- Activity: Look at a chart with drawings of different shapes.
- Identify: Notice how many flat faces, edges, and curved surfaces each shape has.
- Practice: Count and write down the numbers for each shape.
Presentation:
- Step 1: Review the previous topic, which was about basic shapes (square, rectangle, and circle). Ask pupils to identify these shapes in objects around them. Understanding and Solving Problems on Area and Number Ordering Mathematics Primary 2 Third Term Lesson Notes Week 9
- Step 2: Introduce the new topic. Explain the different shapes (cube, cuboid, and cylinder) and their characteristics. Show the chart on shapes and real-life objects.
- Step 3: Allow pupils to mention objects in their homes that have the shapes of cube, cuboid, and cylinder. Discuss their findings as a class.
- Teacher’s Activities:
- Guide pupils in identifying shapes in their homes.
- Facilitate group comparisons of flat-faced and curved-surface objects.
- Help pupils study the chart on shapes and identify the number of flat faces, edges, and curved surfaces.
- Learners’ Activities:
- Mention objects in their homes that have the shapes of cube, cuboid, and cylinder.
- Compare flat-faced objects and curved surfaces in groups.
- Study the chart on shapes to identify the number of flat faces, edges, and curved surfaces.
Assessment:
- Ask pupils to identify objects in their homes with the shapes of cube, cuboid, and cylinder.
- Have pupils compare the number of flat faces, edges, and curved surfaces in different shapes.
- What is a cube?
- A cube is a shape with 6 flat faces, 12 edges, and 8 corners. All of its faces are square.
- What objects at home have a cube shape?
- Examples include a Rubik’s cube, dice, or a small gift box.
- What is a cuboid?
- A cuboid has 6 flat faces, 12 edges, and 8 corners. Its faces are rectangles or squares.
- What objects at home have a cuboid shape?
- Examples include a book, a cereal box, or a brick.
- What is a cylinder?
- A cylinder has 2 flat circular faces and 1 curved surface around its middle.
- What objects at home have a cylinder shape?
- Examples include a can of soda, a toilet paper roll, or a water bottle.
- What is a sphere?
- A sphere is a perfectly round shape with a smooth, curved surface and no edges or corners.
- What objects at home have a sphere shape?
- Examples include a ball, an orange, or a marble.
- How do you count the faces, edges, and corners of a cube?
- A cube has 6 flat square faces, 12 edges, and 8 corners. You can count them one by one.
- How do you count the faces, edges, and curved surface of a cylinder?
- A cylinder has 2 flat circular faces and 1 curved surface around the middle. It doesn’t have corners.
- What is the difference between a cuboid and a cylinder?
- A cuboid has 6 flat faces, 12 edges, and 8 corners. A cylinder has 2 flat circular faces and 1 curved surface.
- Why is a sphere different from other shapes?
- A sphere is different because it has a smooth, curved surface and no edges or corners.
- **How do you identify a
sphere shape in your home?**
- Look for perfectly round objects without any edges or corners, such as a ball, an orange, or a marble.
- What makes a cuboid different from a cube?
- A cuboid can have different lengths, widths, and heights, while a cube has equal side lengths on all sides.
- How can you tell the difference between a square and a rectangle?
- A square has all four sides of equal length, while a rectangle has opposite sides of equal length and different lengths for adjacent sides.
Evaluation Questions:
- What shape has 6 flat square faces?
- What shape has 2 flat circular faces and 1 curved surface?
- How many edges does a cube have?
- How many flat faces does a cuboid have?
- Which shape has a curved surface but no flat faces?
- Can you name an object at home that has the shape of a cylinder?
- What shape is similar to a book?
- How many corners does a cube have?
- How many flat faces does a cylinder have?
- Can you name an object at home that has the shape of a cuboid?
Objective Questions on the topic of shapes (cube, cuboid, cylinder, and sphere):
- A cube has _____ flat faces. a) 4 b) 5 c) 6 d) 7
- A cuboid has _____ edges. a) 10 b) 12 c) 14 d) 16
- A cylinder has _____ curved surface. a) 0 b) 1 c) 2 d) 3
- A sphere has _____ corners. a) 0 b) 1 c) 2 d) 3
- A cube has _____ corners. a) 6 b) 8 c) 10 d) 12
- A cuboid has _____ flat faces. a) 4 b) 5 c) 6 d) 7
- A cylinder has _____ flat faces. a) 1 b) 2 c) 3 d) 4
- A cube has all sides _____ in length. a) different b) the same c) longer d) shorter
- A cuboid has _____ types of faces. a) one b) two c) three d) four
- A cylinder has _____ edges. a) 0 b) 2 c) 4 d) 6
- A sphere has _____ surfaces. a) flat b) curved c) mixed d) none
- A cuboid’s faces are in the shape of _____. a) squares b) triangles c) circles d) rectangles
- A cylinder’s curved surface is _____ in shape. a) square b) rectangular c) circular d) triangular
- The number of faces on a sphere is _____. a) 0 b) 1 c) 2 d) 3
- A cube has faces in the shape of _____. a) squares b) rectangles c) triangles d) circles
Conclusion:
- The teacher goes around the classroom to mark pupils’ work and provide feedback.
- Encourage pupils to continue observing and identifying shapes in everyday objects.
- Praise pupils for their participation and correct any mistakes gently.
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