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Summary of Value Equivalence: buying and selling

Lara from Teachy


Mathematics

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Value Equivalence: buying and selling

An Adventure in the Kingdom of Enchanted Coins 🌟

Once upon a time in the enchanting realm of Coinlandia—a magical kingdom where every transaction twinkled with mystery—our fearless grade three students were summoned by the wise Queen Mathilda for a very important mission: to master the art of buying and selling, support local merchants, and ensure the enchanted market worked smoothly.

As they passed through the golden gates at the heart of Coinlandia's market, they were greeted by a dazzling display of colours and delightful aromas. There were shops everywhere—one offering toys that appeared to come to life, another serving scrumptious unicorn treats that shimmered in the sunlight, and yet another selling mystical potions that promised adventure. Each group was given the challenging task of managing one of these shops and creating an enticing catalog of magical products using the Canva app. Everything was going splendidly until the real challenge appeared: making sure every transaction was handled correctly, especially when it came to calculating change.

The students banded together, choosing creative team names like 'The Guardians of Change' and 'Masters of Numbers, ready to take on any challenge,' and eagerly set out on their mission. They designed digital catalogs bursting with colourful illustrations and shared them throughout the market. Curious customers soon arrived, and with every purchase, Queen Mathilda stepped in with impromptu math challenges to boost their skills.

(Q1) A customer bought a magical potion for 50 coins and paid with a 70-coin bill. What is the change?

Each correct answer earned the students further encouragement from Queen Mathilda, propelling them to the next activity. Alongside managing their catalogs, they also explored various payment options—from shimmering enchanted coins to sparkling magical cards and even lively dragon digital wallets. These discoveries not only streamlined the market but also made the whole experience incredibly interactive.

The adventure deepened when the students were invited to the majestic Royal Bank of Coinlandia. Here, each student created their own fictional bank account and participated in simulated financial activities—making deposits from the royal treasury, planning withdrawals for enchanted purchases, and transferring funds among classmates. Queen Mathilda watched with delight as they handled balances and change calculations with impressive speed and precision.

(Q2) The prince nodded off beneath the shade of an enchanted oak and missed his chance to buy his birthday cake. With 100 coins in his account, having spent 60 coins on the cake but withdrawn 70 coins for a special gift for the Queen, what remains in his account?

Buoyed by their newfound confidence in change calculations, the students were raring to go for the final hurdle: The Great Digital Transactions Game Show! Using the Kahoot! app to turn learning into an exciting quiz, they tackled challenging questions about buying and selling, different payment methods, and the art of making change. Each round filled Queen Mathilda with pride over the clever ways they applied their knowledge.

(Q3) In a purchase totaling 80 coins, if payment is made with two 50-coin bills, how much change should be returned?

By the end of their journey through Coinlandia, the students had not only built a solid understanding of buying, selling, and precise change-making, but they’d also experienced firsthand how modern tools like digital wallets and contactless payments play a role in everyday transactions.

To commemorate their adventure, Queen Mathilda presented each student with a magical scroll inscribed with the words: 'Knowledge of transactions and calculations is the magic we use every day.' In celebration, the local merchants organized a festive feast complete with enchanting treats and music that even had the trees swaying. The students left with hearts brimming with new insights and memories of a truly unforgettable adventure.

And so, the mission in the magical land of Coinlandia became a story of success and meaningful learning—a place where math and magic met to transform knowledge into a living, practical wonder. The End.


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