Mathematics - Primary 5 - Square and square roots

Square and square roots

Term: 1st Term

Week 11: Squares and Square Roots

Class: Primary 5
Age: 10 years
Duration: 40 minutes of 5 periods
Date:
Subject: Mathematics
Topic: Squares and Square Roots

SPECIFIC OBJECTIVES:
At the end of the lesson, pupils should be able to:

  1. Find the square of a given whole number greater than 50.
  2. Find the square root of perfect squares greater than 400.
  3. Perform basic operations on squares and square roots of numbers.
  4. Solve real-life problems related to square and square roots.
  5. Solve quantitative aptitude problems involving squares and square roots of whole numbers.

INSTRUCTIONAL TECHNIQUES:

  • Lecture and hands-on practice
  • Problem-solving in pairs and groups
  • Use of calculators and visual aids for square and square root calculation

INSTRUCTIONAL MATERIALS:

  • Square number chart
  • Whiteboard and markers
  • Calculators (optional for advanced practice)

INSTRUCTIONAL PROCEDURES:

PERIOD 1-2:

Step

Teacher’s Activity

Pupil’s Activity

STEP 1 - INTRODUCTION

Introduce the concept of squares by explaining that squaring a number means multiplying the number by itself.

Pupils listen and take notes.

STEP 2 - DEMONSTRATION

Demonstrate how to square numbers (e.g., 7² = 49).

Pupils observe and practice squaring numbers.

STEP 3 - PRACTICE

Give pupils a series of numbers to square (e.g., 6, 12, 15, etc.).

Pupils work on squaring numbers individually.

EXERCISE:

  • 8² = ?
  • 12² = ?
  • 15² = ?

 

PERIOD 3-4:

Step

Teacher’s Activity

Pupil’s Activity

STEP 1 - INTRODUCING SQUARE ROOTS

Introduce the square root concept and explain that it is the opposite of squaring.

Pupils listen and take notes.

STEP 2 - DEMONSTRATION

Explain how to find the square root of a perfect square (e.g., √49 = 7).

Pupils practice finding square roots of numbers.

STEP 3 - PRACTICE

Provide examples for pupils to find square roots (e.g., √121, √400).

Pupils work through problems individually.

EXERCISE:

  • √144 = ?
  • √625 = ?

 

PERIOD 5:

Step

Teacher’s Activity

Pupil’s Activity

STEP 1 - REAL-LIFE APPLICATION

Provide real-life examples where square and square roots are used (e.g., area of square objects, architecture, etc.).

Pupils solve real-life problems involving squares and square roots.

STEP 2 - QUANTITATIVE APTITUDE PROBLEMS

Provide aptitude problems that include both squares and square roots for practice.

Pupils solve complex problems involving square roots.

EXERCISE:

  • Find the square root of 900.

What is the square of 25?