Two Dimensional Shapes and Counting Mathematics Primary 1 Second Term Lesson Notes Week 9

Lesson Plan for Primary 1 Mathematics – Two Dimensional Shapes (231-240)

Subject: Mathematics
Class: Primary 1
Term: Second Term
Week: 9
Age: 6-7 years
Topic: Two Dimensional Shapes
Sub-topic: Numbers 231-240, Skip Counting, and 2D Shapes
Duration: 40 minutes

Behavioral Objectives:

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

1. Identify and count numbers from 231-240.
2. Skip count in 2s, 5s, and 10s.
3. Recognize two-dimensional shapes in their environment.
4. Identify common objects related to two-dimensional shapes (e.g., square, circle, rectangle, triangle).
5. Name household items that resemble two-dimensional shapes.
6. Apply the concept of capacity in real-life situations.
7. Solve simple quantitative reasoning problems related to the lesson.

Keywords:

Two-dimensional shapes, square, circle, rectangle, triangle, skip count, capacity, numbers 231-240, quantitative reasoning

Set Induction:

• Activity: Begin by asking pupils to look around the classroom and identify objects with shapes like squares, circles, rectangles, and triangles. Write their answers on the board.
• Rationale: This activity links the lesson content with real-life observations, making it more relevant and engaging for the students.

Entry Behavior:

• Pupils should already be able to count from 1-100 and understand basic shapes like squares, circles, rectangles, and triangles.

Learning Resources and Materials:

• Flashcards with shapes (square, circle, rectangle, triangle)
• Number charts (231-240)
• Household objects (or pictures) that demonstrate 2D shapes
• Whiteboard and markers
• Counting objects (e.g., coins, buttons) for skip counting exercises

Building Background/Connection to Prior Knowledge:

• Pupils are familiar with counting numbers 1-100.
• They have previously learned basic shapes and their properties (e.g., squares, circles, triangles).

Embedded Core Skills:

• Communication Skills: Pupils will express their understanding of shapes and counting.
• Critical Thinking Skills: Pupils will identify shapes and apply the concept of capacity in real-world situations.
• Problem-solving Skills: Pupils will apply their knowledge of skip counting to solve quantitative reasoning problems.

Learning Materials:

• Flashcards with shapes
• Pictures of household items (square, circle, rectangle, triangle)
• Number charts from 231 to 240

Reference Books:

• Lagos State Scheme of Work for Primary 1 Mathematics
• Lagos State Curriculum for Mathematics

Instructional Materials:

• Flashcards with shapes
• Whiteboard and markers
• Counting materials (coins, buttons)
• Household items or pictures representing 2D shapes

Content:

1. Two-Dimensional Shapes (2D):
   • A two-dimensional shape is a flat shape that only has length and width. These shapes can be drawn on paper or any flat surface.
   • Examples of 2D shapes include:
     • Square: A shape with four equal sides, like a chessboard.
     • Circle: A round shape, like a tyre or a coin.
     • Rectangle: A shape with four sides, where opposite sides are equal, like a door.
     • Triangle: A shape with three sides, like a caution sign.
2. Numbers 231-240:
   • These are numbers in the series from 231 to 240.
   • Students will learn how to count forward and backward from these numbers.
3. Skip Counting:
   • Skip counting is counting by numbers other than 1. For example:
     • Count in 2s: 2, 4, 6, 8, 10, 12, etc.
     • Count in 5s: 5, 10, 15, 20, 25, etc.
     • Count in 10s: 10, 20, 30, 40, 50, etc.
4. Capacity in Real Life:
   • Capacity refers to how much something can hold. For example, a container can hold liquid or solid objects. Common examples of containers at home are cups, bottles, and bowls.

Examples:

1. Square: The chessboard has many squares.
2. Circle: A tyre or a coin is shaped like a circle.
3. Rectangle: A door is shaped like a rectangle.
4. Triangle: The C-caution sign is shaped like a triangle.
5. Skip Counting:
   • Counting by 2s: 2, 4, 6, 8, 10, 12…
   • Counting by 5s: 5, 10, 15, 20, 25…
   • Counting by 10s: 10, 20, 30, 40, 50…

Evaluation Questions:

15 Fill-in-the-Blank Questions:

1. The number that comes after 231 is __________.
   a) 232
   b) 235
   c) 240
   d) 250
2. Which of these is shaped like a square?
   a) Caution sign
   b) Chessboard
   c) Door
   d) Coin
3. Skip counting by 5s from 5 gives the number __________.
   a) 10
   b) 15
   c) 5
   d) 20
4. A door is shaped like a __________.
   a) Circle
   b) Square
   c) Rectangle
   d) Triangle
5. The number before 240 is __________.
   a) 239
   b) 231
   c) 235
   d) 230
6. The shape with three sides is a __________.
   a) Square
   b) Triangle
   c) Rectangle
   d) Circle
7. The number after 235 is __________.
   a) 231
   b) 240
   c) 237
   d) 239
8. Skip counting by 2s starting from 2 will give the number __________.
   a) 4
   b) 6
   c) 8
   d) 10
9. A tyre is shaped like a __________.
   a) Circle
   b) Square
   c) Rectangle
   d) Triangle
10. The number before 236 is __________.
    a) 235
    b) 230
    c) 239
    d) 234
11. Skip counting by 10s from 10 will give the number __________.
    a) 15
    b) 20
    c) 25
    d) 30
12. A square has __________ sides.
    a) 3
    b) 4
    c) 5
    d) 6
13. A __________ is shaped like a coin.
    a) Square
    b) Rectangle
    c) Circle
    d) Triangle
14. The number after 237 is __________.
    a) 238
    b) 236
    c) 240
    d) 245
15. The shape of a caution sign is a __________.
    a) Square
    b) Circle
    c) Rectangle
    d) Triangle

Class Activity Discussion:

15 FAQs:

1. What is a two-dimensional shape?
   • A two-dimensional shape is flat and only has length and width.
2. How many sides does a square have?
   • A square has four equal sides.
3. What shape is a tyre?
   • A tyre is shaped like a circle.
4. What do we call a shape with three sides?
   • A shape with three sides is called a triangle.
5. How do you count by 2s?
   • Counting by 2s means adding 2 each time: 2, 4, 6, 8…
6. What shape is a door?
   • A door is shaped like a rectangle.
7. What is skip counting?
   • Skip counting means counting by numbers other than 1, like 2s, 5s, or 10s.
8. What is the number before 240?
   • The number before 240 is 239.
9. What is the number after 232?
   • The number after 232 is 233.
10. What object at home is shaped like a circle?
    • A coin or tyre is shaped like a circle.
11. How do we skip count by 5s?
    • We count by 5s like this: 5, 10, 15, 20…
12. What is a shape with four sides and opposite sides equal?
    • A rectangle has four sides, and opposite sides are equal.
13. What shape has no corners?
    • A circle has no corners.
14. What household items are shaped like triangles?
    • A caution sign is an example of a triangle shape.
15. How many sides does a triangle have?
    • A triangle has three sides.

Assessment:

10 Short-Answer Questions:

1. What comes after 231?
2. What shape is like a chessboard?
3. How many sides does a square have?
4. What shape is a tyre?
5. How do you count in 5s?
6. Name one object at home shaped like a rectangle.
7. What is the number before 240?
8. What shape is a caution sign?
9. How many sides does a triangle have?
10. What is skip counting by 10s?

Conclusion:

The teacher will go around marking the work and providing feedback. The lesson will end with a recap of the key points: identifying shapes, counting from 231-240, and skip counting by 2s, 5s, and 10s.