Mathematics - Primary 4 - Square and Rectangle

Square and Rectangle

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Term: 3rd Term

Week: 3

Class: Primary 4
Duration: 40 minutes (5 periods)

Topic: Square and Rectangle

SPECIFIC OBJECTIVES:

By the end of the week, students should be able to:

  • Measure and calculate the perimeter of a square.
  • Measure and compute the perimeter of a rectangle.
  • Solve for the area of a square and rectangle.
  • Solve real-life problems related to the area and perimeter of squares and rectangles.
  • Solve quantitative reasoning problems related to areas and perimeters of squares and rectangles.

INSTRUCTIONAL MATERIALS:

  • Rulers
  • Measuring tape
  • Visual aids for shapes
  • Chalkboard/whiteboard

INSTRUCTIONAL PROCEDURES

PERIOD 1 and 2: Measuring and Calculating the Perimeter of a Square

STEP

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1 – INTRODUCTION

Introduces the concept of a square and its properties (equal sides).

Pupils listen and discuss the properties of a square.

STEP 2 – EXPLANATION

Explains how to calculate the perimeter of a square (Perimeter = 4 × side).

Pupils take notes on how to calculate the perimeter.

STEP 3 – DEMONSTRATION

Demonstrates calculating the perimeter of a square using real examples.

Pupils follow along, calculating the perimeter of squares.

STEP 4 – EXERCISES

Provides practice problems on calculating the perimeter of squares.

Pupils solve the exercises.

EVALUATION:

  • Find the perimeter of a square with a side length of 5 cm.
  • Find the perimeter of a square with a side length of 7 meters.

CLASSWORK:

  • Find the perimeter of a square with a side length of 3 cm.
  • Find the perimeter of a square with a side length of 4 meters.

ASSIGNMENT:

  • Find the perimeter of a square with a side length of 8 cm.
  • Find the perimeter of a square with a side length of 6 meters.

 

PERIOD 3 and 4: Measuring and Calculating the Perimeter of a Rectangle

STEP

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1 – INTRODUCTION

Introduces the concept of a rectangle and its properties (opposite sides are equal).

Pupils listen and take notes on the properties of a rectangle.

STEP 2 – EXPLANATION

Explains how to calculate the perimeter of a rectangle (Perimeter = 2(l + b), where l = length, b = breadth).

Pupils take notes and discuss the formula.

STEP 3 – DEMONSTRATION

Demonstrates calculating the perimeter of a rectangle using examples.

Pupils follow along with the teacher’s example.

STEP 4 – EXERCISES

Provides practice problems on calculating the perimeter of rectangles.

Pupils solve the problems independently or in pairs.

EVALUATION:

  • Calculate the perimeter of a rectangle with length 6 cm and breadth 4 cm.
  • Calculate the perimeter of a rectangle with length 8 meters and breadth 3 meters.

CLASSWORK:

  • Calculate the perimeter of a rectangle with length 5 cm and breadth 2 cm.
  • Calculate the perimeter of a rectangle with length 7 meters and breadth 4 meters.

ASSIGNMENT:

  • Calculate the perimeter of a rectangle with length 10 cm and breadth 6 cm.
  • Calculate the perimeter of a rectangle with length 12 meters and breadth 5 meters.

 

PERIOD 5: Area of a Square and Rectangle

STEP

TEACHER’S ACTIVITY

PUPIL’S ACTIVITY

STEP 1 – INTRODUCTION

Introduces the concept of area for a square (Area = side × side).

Pupils listen and take notes on how to calculate the area.

STEP 2 – EXPLANATION

Explains the formula for calculating the area of a square.

Pupils discuss the formula and solve a sample problem.

STEP 3 – DEMONSTRATION

Demonstrates calculating the area of a square and rectangle.

Pupils follow along, calculating the area.

STEP 4 – EXERCISES

Provides practice problems for calculating the area of squares and rectangles.

Pupils solve the exercises independently or in pairs.

 

EVALUATION:

  • Find the area of a square with side length 5 cm.
  • Find the area of a rectangle with length 6 cm and breadth 4 cm.

CLASSWORK:

  • Find the area of a square with side length 3 cm.
  • Find the area of a rectangle with length 5 cm and breadth 2 cm.

ASSIGNMENT:

  • Find the area of a square with side length 8 cm.

Find the area of a rectangle with length 7 cm and breadth 5 cm.