01 · Choose your basket
Choose different item cards within the $120 budget: no duplicate cards. List each item and its price, and total the basket. Keep the basket below $120 as directed in the project slides.
Extreme Couponing
The Lakeshore Legends market project.
How much can you save—and what will you earn?
Your market pathway
Use the Lakeshore Legends slides and your teacher’s assigned cards for the exact classroom rules. This guide supports the mathematics; it does not replace the assigned coupons or chance cards.
02 · Apply and compare coupons
You may apply your coupons in any order. Record each eligible base, discount and new total. The next coupon acts on the updated total. Compare another order using the same basket and coupons; show why your chosen order is better. Follow the actual card conditions.
03 · Set a resale price
Choose a resale amount over 100% of cost, calculate the price and profit, and create an ad for the village marketplace. State your cost base. “150% of cost” gives a 50% markup; “150% markup” gives a price of 250% of cost. Label the interpretation instead of leaving it ambiguous.
04 · Use the chance card
Apply the card you actually receive to the stated price or amount. Record its effect as a separate step. Do not invent an outcome or assume an advertised price is the actual sale revenue.
05 · Explain your result
Compare original listed value, amount paid after coupons, actual sale revenue and dollar profit. Give overall savings and profit percentages with their reference amounts. Explain why your coupon order and resale choice made sense. Check units and rounding.
A coupon-order laboratory
Predict first. Change one value, then explain what stays the same and what changes. All bars use the same scale within a model.
A worked market example
This invented example uses four different cards priced $40, $30, $25 and $15: a $110 basket, below $120. Assume a $20 coupon and 25% coupon both apply to the whole basket.
- Dollar coupon first: (110 − 20) × 0.75 = $67.50.
- Percent coupon first: 110 × 0.75 − 20 = $62.50. This order costs $5 less.
- Overall savings: (110 − 62.50) ÷ 110 × 100% ≈ 43.18%.
- Resale at 160% of the $62.50 purchase cost: 1.60 × 62.50 = $100.
- Before any chance-card effect, profit would be $37.50, or 60% of cost, if the whole basket sells at that price.
No tax is added in this example because the Lakeshore Legends slides do not specify a tax rule. If your teacher supplies one, include it explicitly. Keep intermediate precision; round money at the payment stage your teacher specifies.
Read your result like a mathematician
A zero purchase cost still permits a dollar-profit calculation, but profit as a percent of cost is undefined. Unsold stock is not sale revenue. If an outcome reduces a price, apply it to the base named on the card, then recalculate the actual profit.
Before you submit
- Different item cards and an itemized total within the assigned budget.
- Every coupon shown separately, in the order applied, using its eligible base.
- Two orders compared with a reason for your choice.
- Resale price labelled as percent of cost or markup on cost.
- Marketplace ad and actual chance-card outcome recorded.
- Dollar results and percentage results use clearly named reference amounts.
Project instructions
Your teacher supplies the assigned cards, submission requirements and assessment criteria in class or Google Classroom.