Exchange Rate Worksheet

Exchange rates sound abstract until a student actually has to use one. The math itself is simple multiplication. The hard part, the part that makes this a genuinely useful economics lesson, is getting students to see that a price tag means nothing on its own once you cross a border, and that a currency's value can make or break a business without anyone touching the product itself.

This worksheet builds that understanding in three moves. First, students convert the price of the same pair of sneakers sold in the United Kingdom, Japan, and South Africa into U.S. dollars, using real currency pairs and real rates. That forces the mechanical skill: price times dollars-per-unit. Second, they compare the converted prices to find the actual cheapest deal, which only works if the conversion step was done correctly, so it doubles as a built-in check. Third, and this is where the lesson turns from arithmetic into economics, students work through what happens when the South African rand depreciates. They have to reason out whether South African exports get cheaper or more expensive for U.S. buyers, whether the quantity of those exports rises or falls, and who in South Africa wins or loses when their currency loses value.

That last section is the one worth protecting classroom time for. Currency depreciation isn't a topic most students encounter anywhere else in a standard curriculum, but it shows up constantly in the news, in trade policy debates, and in how multinational companies actually price things. Give students a concrete, personal frame — a pair of sneakers, a real percentage change — and the concept of winners and losers from a weaker currency stops being an abstract policy debate and becomes something they can explain in their own words.

The sneaker framing is doing more work than it looks like. Most students have already noticed that the "same" product costs different amounts in different places, whether that's a sneaker resale listing, a video game, or a subscription price they've seen quoted in another currency online. This worksheet takes that half-formed observation and gives it a mechanism: the price difference isn't random, it's a function of a specific, quotable exchange rate, and that rate moves for reasons students can actually trace. Once they've done the conversion themselves for three countries, the idea that a currency has a "price" of its own, not just the goods priced in it, stops being confusing.

That distinction matters because it's the hinge the whole worksheet turns on. A student who understands that a currency itself can get more or less expensive is equipped to reason through Part 3 instead of guessing. A student who still thinks of exchange rates as a fixed conversion factor, like inches to centimeters, will struggle with the idea that "the same amount of rand buys fewer dollars now" has consequences for real exporters and real jobs. Building that foundation with numbers before asking for the reasoning is what makes the winners-and-losers discussion land instead of feeling arbitrary.

This worksheet comes from Module 35: Work, Trade & Technology, one of the units in Rapunzl's economics and markets curriculum for grades 6–12.

Currency Quest

You will convert prices in three foreign currencies into U.S. dollars to find the best deal, then predict who WINS and who LOSES when one currency's value changes — the everyday math and logic of exchange rates.

Part 1 — Convert to dollars (individual)

The same pair of sneakers is sold in three countries. Using the exchange rates, convert each price into U.S. dollars (price × dollars-per-unit).

Part 2 — Find the best deal (individual)

1. In which country are the sneakers CHEAPEST once converted to dollars? ______
2. Why do you have to convert before comparing? Answer in one sentence. ______

Part 3 — Winners and losers (pairs)

Suppose the South African rand depreciates (R1 now buys only $0.045 instead of $0.055). With a partner: (1) Do South African EXPORTS become cheaper or more expensive for U.S. buyers? (2) Does the QUANTITY of South African exports likely rise or fall? (3) Name one group in South Africa that WINS and one that LOSES from the depreciation.

Teacher notes

Part 1 is a low-stakes on-ramp: every student should be able to complete the conversions with a calculator, and that success sets them up for the harder reasoning in Parts 2 and 3. Circulate during Part 1 to catch a common error early — some students multiply by the wrong side of the exchange rate pair, since the rate is given as local-currency-per-dollar for two rows and dollars-per-local-unit isn't always the intuitive read at first glance.

Part 3 is where the real thinking happens, and it works best with partners rather than solo, since students talk each other through the counterintuitive parts. A weaker currency making a country's exports cheaper abroad is not obvious the first time a student hears it; letting two students argue it out gets there faster than a teacher explaining it up front.

For groups that finish early, ask them to name a real product or company affected by currency swings — this connects the worksheet to something they can look up and follow beyond the class period, without needing an answer key to do it.

Exchange Rate Worksheet is one activity inside a full unit. Teachers get the rest of the sequence, plus the student-facing simulator, through the Rapunzl portal.

See the rest of the Work, Trade & Technology unit and how it fits into the full course:

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