# Properties, Perimeter and Area of a Square and a Rectangle Primary 4 (Basic 4) Term 3 Week 4 Mathematics

### MATHEMATICS

THIRD TERM

WEEK 4

PRIMARY 4

THEME – PRIMARY MEASURES

PREVIOUS LESSON – Weight – Addition, Subtraction, Multiplication and Division of Weight in Grams and Kilograms Primary 4 (Basic 4) Term 3 Week 3 Mathematics

**TOPIC – SQUARE AND RECTANGLES **

**LEARNING AREA **

1. Introduction

2. Properties of a Square and Rectangle

3. Perimeter of a Square and Rectangle

4. Area of a Square and Rectangle

5. Lesson Evaluation and Weekly Assessment (Test)

**PERFORMANCE OBJECTIVES **

By the end of the lesson, most pupils should have attained the following objectives –

1. identify the properties of a square and rectangle.

2. define perimeter.

3. find the perimeter and area of a square and rectangle.

4. solve a real life problem.

5. solve quantitative reasoning related to the perimeter and area of square and rectangle.

**RATIONALE**

Perimeter is the distance round a particular shape. The perimeter of a rectangle or square is to add all the four sides. The concept of perimeter will enable the pupils to understand and appreciate the distance around a particular shape or object.

**ENTRY BEHAVIOUR **

The pupils can add four (4) numbers together.

**INSTRUCTIONAL MATERIALS**

The teacher will teach the lesson with the aid of cut-outs of squares, rectangle, triangles and teacher’s table.

**METHOD OF TEACHING **

Choose a suitable and appropriate methods for the lessons.

Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons.

**REFERENCE MATERIALS**

1. Scheme of Work

2. 9 – Years Basic Education Curriculum

3. Course Book

4. All Relevant Material

5. Online Information

**CONTENT OF THE LESSON **** **

**LESSON 1 – PROPERTIES OF A SQUARE AND RECTANGLE**

ACTIVITY 1 – IDENTIFICATION OF A SQUARE AND A RECTANGLESquare and rectangle are quadrilaterals with four sides and angles.

ACTIVITY 2 – PROPERTIES OF A SQUARE AND A RECTANGLE

A SQUARE

A square is any quadrilateral with four equal sides and and equal angles.

Each of the angle is at 90º.

PROPERTIES OF A SQUARE1. It has 4 equal sides.

2. It has 4 vertices (corners).

3. It has 4 equal angles at 90°.

4. It has 2 equal diagonals.

5. The opposite sides are parallel.

6. A diagonal divides the square into 2 equal isosceles triangles.

7. The length of diagonals is greater than the sides of the square.

8. The area of a square is length x length, length square or l².

RECTANGLE

A rectangle is any quadrilateral with two opposite sides equal and equal angles.

Each of the angle is at 90º.

PROPERTIES OF A RECTANGLE1. The opposite sides are equal and parallel.

2. It has 4 vertices (corners).

3. It has 4 equal angles at 90°.

4. It has 2 equal diagonals.

5. A diagonal divides the square into 2 equal scalene triangles.

6. The area of a rectangle is length x breathe, i.e. L x B.

### LESSON 2 – PERIMETER OF SQUARES AND RECTANGLES

ACTIVITY 1 – SQUARE AND RECTANGLESquare and rectangle are any shape with four lengths.

Square has 4 equal length while rectangle has 2 equal opposite lengths.

ACTIVITY 2 – PERIMETER OF SQUARESFind the perimeter of,

Perimeter is 5 cm + 5 cm + 5 cm + 5 cm = 25 cm.

ACTIVITY 3 – PERIMETER OF RECTANGLESFind the perimeter of,

Perimeter is 7 cm + 12 cm + 7 cm + 12 cm = 38 cm.

ACTIVITY 4 – PERIMETER OF SQUARES AND RECTANGLESTeacher guides pupils to measure, record and find the perimeter of the following:

ACTIVITY 5 – WORKING EXERCISEFind the perimeter of the following:

**LESSON 3 – INDOOR AND OUTDOOR ACTIVITIES **

Teacher guides pupils to measure, record and find the perimeter of the classroom and school’s building using non standard and standard tools.

**LESSON 4 – AREA OF A SQUARE AND A RECTANGLE**

ACTIVITY 1 – WORKING EXAMPLEThe shape below has four (4) lengths. Name all the lengths as A, B, C and D with A and D equal to 7 cm each while B and D equal to 4 cm each.

The area of the rectangle is calculated by by multiple 7 cm and 4 cm to give 28 cm² and equal to the number of square boxes in the shape.

Area of rectangle is Length x Breadth.That’s, L x B

Area of square is Length x Length.That’s, L²

ACTIVITY 2 – WORKING EXAMPLEFind the area of rectangles and squares, using the formula.

ACTIVITY 3 – WORKING EXERCISE

**LESSON 5 – REVISION AND WEEKLY ASSESSMENT **

As stated in performance objectives or lesson evaluation.

**PRESENTATION**

To deliver the lesson, the teacher adopts the following steps:

1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;

2. Teacher organizes pupils in groups or pairs depending on the size of the class.

3. Teacher displays sample of square and rectangle.

4. Teacher lets pupils as groups or pairs to examine and compare the two shapes.

Pupil’s Activities – Examine and compare the two shapes.

5. Teacher guides pupils to measure each shape in order to identify the difference between the shapes.

Pupil’s Activities – Identify the different between square shape and rectangular shape.

6. Teacher uses the shapes and pupil’s responses to introduce the lesson.

Pupil’s Activities – Pay attention to the lesson introduction to understand the concept of the lesson.

7. Teacher guides and discuss the properties of square and rectangle.

Pupil’s Activities – Identify and state the properties of square and rectangle.

8. Teacher introduce and guides pupils to find the perimeter of a square and a rectangle with specific lengths.

Pupil’s Activities – Find the perimeter of a square and a rectangle with specific lengths.

9. Teacher guides pupils to determine the perimeter of the classroom and school building.

Pupil’s Activities – Measure, record and find the perimeter of the classroom and school’s building using standard measuring tools.

10. Teacher also guides pupils to measure, record and find the Perimeter and area of a square and a rectangle.

Pupil’s Activities – Find the perimeter and area of a square and a rectangle.

11. Summarizes the lessons on the board on the board with appropriate lesson evaluation.

Pupil’s Activities – Participate actively in the summary of the lesson by responding correctly as the questions and write as instructed.

**CONCLUSION**

To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.

### NEXT LESSON

Time, Calendar and Date Primary 4 (Basic 4) Term 3 Week 5 Mathematics

**LESSON EVALUATION **

Teacher asks pupils to,

1. identify and differentiate between a square and a rectangle.

2. state 5 properties of squares.

3. mention 5 properties of squares.

4. measure and find the perimeter and area of,

### WEEKLY ASSESSMENT

### ATTEMPT ALL THE QUESTIONS

1. _________ is the distance around a particular shape.

A. Square

B. Rectangle

C. Perimeter

Figure 1.0 Square and Rectangular shapes.

Use the figure 1.0 to answer questions 2 – 5.

2. Measure and record the lengths of the triangle.

3. Find the perimeter of the triangular shape.

4. Measure and record the lengths of the square.

5. Find the perimeter and area of the square shape.

6. Measure and record the lengths of the rectangle.

7. Find the perimeter and area of the rectangular shape.

8. identify and differentiate between a square and a rectangle.

9. state 5 properties of squares.

10. mention 5 properties of squares.