teaching resource

Calculating Discounts and Sale Price Teaching Slides

Updated: 12 Feb 2024

Teach your students how to calculate discounts and sale prices using fractions and decimals with this comprehensive teaching presentation.

Editable: PowerPoint, Google Slides
Pages: 19 Pages
Year: 6

Curriculum

VC2M6N07

Solve problems that require finding a familiar fraction, decimal or percentage of a quantity, including percentage discounts, choosing efficient calculation strategies with and without digital tools <ul> <li>explaining how 1/3 of a quantity can be achieved by dividing by 3, and how knowledge of 1/3 of a quantity can be used to find 2/3 or 4/3 of the same quantity, using situations involving money, length, duration, mass or capacity</li> <li>investigating percentage discounts of 10%, 25% and 50% in an online toy sale, using their equivalent decimal representations of 0.10, 0.25 and 0.50 to calculate the amount of discount on sale items, with and without digital tools</li> <li>linking percentages to their decimal equivalent of tenths and hundredths and using these to determine percentage discounts; for example, finding a 30% discount by using its equivalence to 0.3, dividing by 10 and multiplying the result by 3 to give 30%</li> <li>explaining the equivalence between percentages and fractions, for example,33 1/3% and 1/3, keeping to percentages that are equivalent to fractions with small denominators such as 66 2/3% and 12.5%</li> <li>representing a situation with a mathematical expression, for example, numbers and symbols such as 1/4 × 24, that involves finding a familiar fraction or percentage of a quantity; and using mental strategies or a calculator and explaining the result in terms of the situation in question</li> </ul>
VC2M6N09

Use mathematical modelling to solve practical problems involving rational numbers and percentages, including in financial contexts; formulate the problems, choosing operations and using efficient mental and written calculation strategies, and using digital tools where appropriate; interpret and communicate solutions in terms of the situation, justifying the choices made <ul> <li>modelling practical situations involving percentages using efficient calculation strategies to find solutions, such as mental calculations, spreadsheets, calculators or a variety of informal jottings, and interpreting the results in terms of the situation, for example, purchasing items during a sale</li> <li>modelling situations involving earning money and budgeting, asking questions such as ‘Can I afford it?’, ‘Do I need it?’ and ‘How much do I need to save for it?’ and developing a savings plan or budget for an upcoming event or personal purchase</li> <li>modelling and solving the problem of creating a budget for a class excursion or family holiday, using the internet to research costs and expenses, and representing the budget in a spreadsheet, creating and using formulas to calculate totals</li> </ul>

teaching resource

Calculating Discounts and Sale Price Teaching Slides

Updated: 12 Feb 2024

Teach your students how to calculate discounts and sale prices using fractions and decimals with this comprehensive teaching presentation.

Editable: PowerPoint, Google Slides
Pages: 19 Pages
Year: 6

Teach your students how to calculate discounts and sale prices using fractions and decimals with this comprehensive teaching presentation.

Teach How to Calculate Discounts and Sale Prices

Dad is buying a barbeque. It is priced at $400, but is on sale for 25% off.

What is the discount, and how much will Dad end up paying for the barbeque?

To work out the answer to this question, your students will need to know how to calculate discounts and sale prices.

A discount is a price reduction that is being applied to the regular price of an item. Discount rates are usually expressed as a percentage.
The sale price is the amount paid by the consumer once the discount is applied. The discount is subtracted from the original price.

This comprehensive 19-slide teaching presentation teaches your students how to calculate discounts and sale prices by finding equivalent fractions and decimals for the percentage discount. It explores each strategy in detail using annotated examples of each process. It also includes shared questions and review activities that the class can work through together as a means of checking for understanding.

The key content addressed in this teaching presentation includes:

Discounts in everyday life
What is a discount?
Calculating discounts using fractions
Calculating discounts using decimals
What is the sale price?
Calculating the sale price

This slide deck downloads in either a Microsoft PowerPoint or a Google Slides format. Be sure to operate the presentation in Slideshow mode.

More Resources for Calculating Discounts

Once you have presented this slideshow to your students, you may be looking for further resources to enable your students to practice their newfound skills. Here are some resources we feel would perfectly accompany this calculating discounts slide deck:

Worksheets – When it comes to practising computations in order to automate the process, the humble worksheet certainly does the trick! If you’re wanting to provide your students with a printable worksheet that allows them to practise calculating discounts, then look no further than our Grocery Percentages Worksheet.
Games – Children love learning through games! If it involves playing with a classmate, then even better! Our Roll Me a Discount Board Game is a fun and collaborative way for your students to practice calculating discounts and sale prices.
Projects – Get your students connecting their math knowledge to the real world with Teach Starter’s Plan a Party Maths Investigation. In this investigation, students must use their knowledge and understanding of decimals and percentages to plan an end-of-year celebration for their class. There are many opportunities to calculate discounts and sale prices within this investigation!

Download to Calculate Discounts and Sale Prices

Use the dropdown menu on the Download button to access your preferred version of this resource. (Note: You will be prompted to make a copy of the Google Slides presentation before accessing it.)

Project the resource onto your screen and work through the slides as a class for a paperless lesson on how to calculate discounts and sale prices!

More Fractions, Decimals and Percentages Resources

If you love the look of this resource, then we have good news for you! We have plenty more resources to complement your lessons on equivalent fractions, decimals and percentages. Click below to browse more teacher-created, curriculum-aligned resources!

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I Have, Who Has? Game - Fraction, Decimal and Percentage Equivalence

Reinforce students' understanding of fraction, decimal and percentage equivalence with a whole-class game.

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Maths Mazes (Equivalent Fractions, Decimals and Percentages)

Determine equivalent fractions, decimals and percentages in this puzzling maths maze.

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Fraction, Decimal and Percentage Match-Up Game

Get students converting fractions, decimals and percentages with this hands-on maths game aligned with the upper primary maths curriculum.

Curriculum

VC2M6N07

Solve problems that require finding a familiar fraction, decimal or percentage of a quantity, including percentage discounts, choosing efficient calculation strategies with and without digital tools <ul> <li>explaining how 1/3 of a quantity can be achieved by dividing by 3, and how knowledge of 1/3 of a quantity can be used to find 2/3 or 4/3 of the same quantity, using situations involving money, length, duration, mass or capacity</li> <li>investigating percentage discounts of 10%, 25% and 50% in an online toy sale, using their equivalent decimal representations of 0.10, 0.25 and 0.50 to calculate the amount of discount on sale items, with and without digital tools</li> <li>linking percentages to their decimal equivalent of tenths and hundredths and using these to determine percentage discounts; for example, finding a 30% discount by using its equivalence to 0.3, dividing by 10 and multiplying the result by 3 to give 30%</li> <li>explaining the equivalence between percentages and fractions, for example,33 1/3% and 1/3, keeping to percentages that are equivalent to fractions with small denominators such as 66 2/3% and 12.5%</li> <li>representing a situation with a mathematical expression, for example, numbers and symbols such as 1/4 × 24, that involves finding a familiar fraction or percentage of a quantity; and using mental strategies or a calculator and explaining the result in terms of the situation in question</li> </ul>
VC2M6N09

Use mathematical modelling to solve practical problems involving rational numbers and percentages, including in financial contexts; formulate the problems, choosing operations and using efficient mental and written calculation strategies, and using digital tools where appropriate; interpret and communicate solutions in terms of the situation, justifying the choices made <ul> <li>modelling practical situations involving percentages using efficient calculation strategies to find solutions, such as mental calculations, spreadsheets, calculators or a variety of informal jottings, and interpreting the results in terms of the situation, for example, purchasing items during a sale</li> <li>modelling situations involving earning money and budgeting, asking questions such as ‘Can I afford it?’, ‘Do I need it?’ and ‘How much do I need to save for it?’ and developing a savings plan or budget for an upcoming event or personal purchase</li> <li>modelling and solving the problem of creating a budget for a class excursion or family holiday, using the internet to research costs and expenses, and representing the budget in a spreadsheet, creating and using formulas to calculate totals</li> </ul>

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