Cookie Mining: Ore Production & Cost-Benefit Analysis – Activity – TeachEngineering

The price of production is key when obtaining nonrenewable and renewable raw resources. Engineers concentrate on each the science and economics behind buying natural resources. Engineers do price-profit analyses to make accountable choices about how to obtain the sources. They look to maximize earnings while additionally contemplating how the environment- the nearby air, land and water-may be impacted through mining by (hopefully) choosing the least destructive mining technique. For example, floor steel tube cheap mining and tool steel underground mining have very difference costs and ways that they impact the lithosphere.

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Before the Activity

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– Make copies of the Cookie Mining Worksheet, which is a simple profit and loss assertion template.- Write the Cookie Mining Reference Sheet data (additionally below) on the classroom board OR make copies as a handout.

Cookie Mining Reference Information

Startup costs: Before mining timing begins:

Land Cost

1 cookie = $1,200

Land space = squares on graph paper (partial squares = 1 full sq.)

Tools Cost (select at the very least 2)

1 paperclip = $500

1 spherical toothpick = $300

1 flat toothpick = $a hundred

After mining timing ends:

Revenue from Sale of Chocolate Ore

Chips that fall off of the graph paper = “lost”

Whole, clean chip = $500 each

“Dirty” chip = chips that have cookie remains on them = $200 every

Partial chip (must be combined to type amount of ore in a single chip) = $one hundred each

Labor Cost (Time)

Ongoing mining operation = $50 per minute

Land Reclamation Cost

Original land (cookie) = $30 per square

Additional land mechanical steel (circles) made throughout reclamation = $50 per sq.

With the students

1. Ask the class the pre-activity questions, as described within the Assessment part.

2. Present to the category the Introduction/Motivation content material to kick-off the exercise.

3. Give every student a chunk of graph paper and one chocolate chip cookie.

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1. With the category, undergo the cookie mining reference info. Have college students decide on their instruments, realizing that instruments are one cost of production that can figure into their closing income.

2. Before timing starts, have college students trace their cookies on the graph paper and depend the squares inside.

3. Place the cookie back inside the circle. Explain that from this point on the cookie might not be touched with their arms. For those who have any queries relating to wherever and how you can utilize steel tube cheap, you’ll be able to e mail us at our web site. Direct college students to begin mining while noticing the clock so as to maintain track of how a lot time the whole class spends at cookie mining (labor value tracked by minutes).

4. Have college students dig out as many chocolate chips as they’ll utilizing solely their instruments.

5. After college students have mined their cookies, they begin reclamation by utilizing only their instruments.

6. Once as many of the remaining cookie items are positioned again contained in the circle, have students draw further circles across the crumbs that are not positioned inside the main cookie circle.

7. Tell the students: When all mining and reclamation is complete and you are able to sell your chocolate ore, arrange them in such a manner that they may be easily counted, and increase your hand. For every pupil, observe the amount of minutes they spent cookie mining.

Profit-loss assertion: Have college students fill out the worksheet, which guides them by way of tabulating the costs of land (cookie), mining tools, labor/time, mining operations, and land reclamation, as well as calculating the mining revenue and profit (net revenue).

Cost-profit evaluation: Discuss with students the differences in prices amongst their friends together with how their cookies are examples of different sorts of mining. For instance surface mining during which college students destroy the cookie in the method vs. underground mining during which the cookie (land) remains largely intact.

8. Conclude by way of a class dialogue, asking college students the put up-activity questions, as provided in the Assessment part.

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