10.1 Small Group · Group 2
Second Challenge Form · Non-Routine Extension · Same Standard, New Problems
profession · inventory · Procedural Fluency · Real-World Applications
- You already can do this. So we go up a level, not up a number: find what is always true, show it a second way, and be ready to defend it with a reason instead of an answer.
- When chefs plan menus, they determine the number of items on the menu and calculate the price point for each item.
- They decide on the portion size of each item and project how much food is needed for each day.
- They calculate how much of each ingredient to order — that is counting, measuring, and multiplying, all before a single dish is cooked.
- A planter that is 4 feet long and 2 feet wide has an area of 4 × 2 = 8 square feet — that tells us how many plants fit.
- If the soil needs to be 1 foot deep, the volume is 4 × 2 × 1 = 8 cubic feet — that tells us how much soil to buy.
- Gardeners also measure seed depth and the distance between seeds. What other garden decisions need math?
- Now prove it: say why that move had to work at all — not just that it did.
- Sentence frame — convince a skeptic: "My method works because ___ . It would stop working if ___ ."
- profession (profesión) — A job someone is trained to do, like chef, nurse, or carpenter.
- inventory (inventario) — The supply of items a business keeps on hand, tracked by counting.
- portion (porción) — The measured amount of food served to one person.
- area (área) — The amount of flat space a surface covers, measured in square units.
- volume (volumen) — The amount of space something fills, measured in cubic units.
- Believing math only 'counts' when it happens in a classroom — and walking past the calculating, measuring, and projecting inside jobs, hobbies, and chores every day.
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1 MULTIPLE CHOICE
A chef expects 120 customers tonight and projects that 1 out of every 4 will order the soup. Each serving of soup uses 2 cups of broth. How much broth should the chef prepare?
- A60 cups
- B240 cups
- C30 cups
- D15 cups
✏️ Workspace & Solution Steps -
2 MULTIPLE CHOICE
One person saves 8 gallons of water a day by turning the water on only to rinse. How much water does that person save in a year (365 days)?
- A2,920 gallons
- B373 gallons
- C1,460 gallons
- D365 gallons
✏️ Workspace & Solution Steps -
3 MULTIPLE CHOICE
If each person in a house saves 2,920 gallons a year, how much does a household of 3 people save in a year?
- A8,760 gallons
- B2,923 gallons
- C973 gallons
- D5,840 gallons
✏️ Workspace & Solution Steps
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4 ERROR ANALYSIS
Fix our table's thinking
- 1The problem:Which statement matches this lesson's big idea?
- 2A classmate at our table answered:Math is only useful for people who work with money
Which step contains the error? Explain the mathematical misconception and write the correct calculation below.
✏️ Corrected Mathematical Work & Explanation -
5 OPEN RESPONSE
One person saves 8 gallons of water a day, so a household of 3 saves 8,760 gallons a year. A classmate concludes: 'Then a household of 6 saves twice as much — 17,520 gallons.' The arithmetic is correct. Is the CONCLUSION safe? Name one thing about a real house that could make it wrong.
✏️ Mathematical Justification & Response -
6 OPEN RESPONSE
A chef, a gardener, and a plumber all use mathematics, but they would not all reach for the same tool. Pick TWO of them, describe one problem each actually has to solve, and say which representation — a table, an equation, or a scale drawing — you would hand each one, and why that one and not the others.
✏️ Mathematical Justification & Response
Writing Task: Justify why your mathematical solution is accurate and complete.