Real-World Math Project
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What you will learn
- 1Apply math skills to solve real-world problems
- 2Use measurement, money, and data to make decisions
- 3Present mathematical thinking clearly
Mini Lesson
Real-world math connects math skills to everyday life: shopping, cooking, building, and travel. In this project lesson you will apply everything learned this year to solve practical problems.
Money
- Calculate totals by multiplying price by quantity.
- Make change: subtract the cost from the amount paid.
- Compare prices to find the better deal.
- Find a discount: multiply the original price by the percentage (as a decimal).
Measurement
- Choose the right unit for the job: miles or km for long distances, feet or m for rooms, inches or cm for small objects, cups for cooking.
- Convert between units: 1 km = 1,000 m, 1 kg = 1,000 g, 1 L = 1,000 mL.
- Estimate quantities before measuring to check your answer is reasonable.
Data
- Read graphs carefully — check the scale and axis labels first.
- Find totals by adding all values; find averages by dividing the total by the number of items.
- Use data to make decisions and justify your answer.
Words to know
discount
An amount taken off the original price.
e.g. A 25% discount on $40 saves $10.
total
The full amount when prices or values are added together.
e.g. Three books at $5 each give a total of $15.
change
The money returned after paying more than the cost.
e.g. Pay $10 for a $7 item — your change is $3.
distance
How far apart two points are, measured in length units.
e.g. The distance from home to the library is 2 km.
average
The total of values divided by how many there are.
e.g. The average of 4, 6, and 8 is (4+6+8) ÷ 3 = 6.
Tip: always write the units in your answer (m, kg, $, etc.) so your work is clear.
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