# DECIMALS AND PERCENTAGES

LESSON PLANNING OF DECIMALS AND PERCENTAGES

Subject Mathematics

Students` Learning Outcomes

• Solve real life problems involving percentage.

Information for Teachers

• Key terms:

• Tell them while dividing and converting to decimals keep your answer to two decimal places only.
• The formula to convert percentage to decimals and vice versa:

o   Percentage to decimal

o   Decimal to percentage

• Consult textbook when and where required

Material / Resources

Writing board, chalk / marker, duster, textbook

Introduction

• Write this on the board and discuss:
• Hot Summer Offer up to 50% off!
• Do you know what is meant by the term ‘UP-TO’? [Let them guess ask many students until the correct guess]
• This means the maximum is 50%. It can be 10% or 40% on different types of items.

Development

Activity 1

• Ask students to find out concession / offer on following items:

• Give time to students to solve them in groups.
• Call few groups for discussion and to present their work.

Activity 2

Pair Work:

• Allocate time to solve and explain method to other member.

Activity 3

Whole Class Discussion:

• Revise steps to generate discussion.
• Dis cuss the ways in which this mathematical application of percentage might be used in their real life experience.
• Ask comparing fractions, comparing decimals and comparing percentages. What is the easiest and why? [Most of them would agree to percentage as the base is same and it becomes comparing whole number]

Sum up / Conclusion

Percentage is calculate out of 100.

• While dividing and converting to decimals write the answer up till 2 decimal places.

• The formulae to convert percentage to decimals and vice versa;

o   Percentage to decimal

o   Decimal to percentage

Assessment

• Solve the following questions with the help of given pictures:

o   Find out the actual price.

o   Find out the money of the discount.

o   Find out the price of items after the discount.

• Give few more questions of percentage from daily life.