Introduction
Are you getting the better buy? In this WebQuest, you are going to apply the rate and unit rate concepts you have learned on a virtual grocery shopping trip. You will compare prices at two different stores, determine the unit rate for select items, figure out how much you would save over the course of a year, and persuade the audience on which item is a better deal.
Introduction
| You can buy a box of 50 cookies for $0.99, or a box of 150 cookies for $2.49. Which should I choose? Just because it's bigger does it really mean that I'm getting a good deal, or are they trying to trick me? Are those wholesale stores really worth it? When you have a limited budget it is necessary to become an avid and aware shopper. Can you find the best deals and walk out spending the least amount of money? Using what we know about rates and unit rates we will be able to apply those concepts to an on-line grocery store experience. We will determine if two different stores has the best prices. |
Task
Task
I could buy 10 Kraft Macaroni and Cheese boxes at Walmart for $10, or I could buy 3 from Jewel-Osco for $4.26. What is the unit rate for each box of Macaroni and Cheese? Which store has the better buy?
Part One: Your task will be to go through different grocery stores to determine the unit rate for certain grocery items and compare them to find the better rate. You will then calculate the cost if you bought each item once a week for an entire year and determine how much you would save per year by buying the cheaper item.
Part Two: You will also be locating prices at a grocery store for given items and you will calculate the unit rate per one piece, instead of per one ounce/pound as given to you on the price tag.
Part Three: Given word problems, you will have to determine which is the better deal.
Process
Process
PART ONE
Download the Excel Spreadsheet and visit the giant and Walmart websites to fill it in. You need to select a cereal, canned soup, chips, beverage, and fruit snacks item that is available at both stores. List the item brand and name, the price listed on the website, and the unit measure. For example if 2 boxes of Apple Jacks are $5.50 and they contain 14 oz each then there is a total of 28 oz for the unit measure. Once you have the price and unit measure find the unit cost for each of the stores and highlight the one that is the best deal. Make sure that you complete all four pages of the SpreadSheet and answer the questions on the last page. You can print it out and hand it in to your teacher when you are done.
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Download this--it is what you will need to complete Part One of the project! |
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A link to Walmart's Grocery Section so that you can find the products needed. |
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A link to Giant's Grocery Section so that you can find the products needed. |
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Steps to help you find the unit rate. |
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If you are stuck, this may help you with Rates. |
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A video tutorial from CMP that helps you find Unit Rate. |
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A video tutorial from CMP that helps you compare unit rate. |
Part Two:
Using these specified products, locate the price at Netgrocer and calculate the unit rate per one piece, instead of per one ounce/pound as given to you on the price tag. You may download this document and either print it out or complete it on the computer and save it.
To download: Part2.docx
Part Three:
You can either download this worksheet by clicking here, or on a separate piece of paper you can neatly and carefully answer the questions. Make sure that you show all of your work, label your answer, and check to make sure it makes sense.
Evaluation
Evaluation
This is how your work will be evaluated.
| Beginning 1 |
Developing 2 |
Qualified 3 |
Exemplary 4 |
Score |
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| Part One | No work is shown, some calculations are correct, but the questions are not completely answered or in complete sentences. | Some work is shown, most calculations are correct, most questions are answered completely and in complete sentences. | Most work is shown, most calculations are correct, and questions are answered in complete sentences. | All work is shown, all calculations are correct. Questions are all answered and in complete sentences. | |
| Part Two | No work is shown, some calculations are correct, but the questions are not completely answered or in complete sentences. | Some work is shown, most calculations are correct, most questions are answered completely and in complete sentences. | Most work is shown, most calculations are correct, and questions are answered in complete sentences. | All work is shown, all calculations are correct. Questions are all answered and in complete sentences | |
| Part Three | No work is shown, only one question is correct. | Two out of four questions are correct. | Three out of four questions are correct. | All four questions are correct! | |
| Neatness and Organization | Work is difficult to read and looks like it was shoved into the bottom of your backpack for days. | Work can be difficult to read at times and is turned in sporadically. | Work is easy to read and put together well. | Work is easy to read, professional, and put together with effort. It is all turned in at once and is neat. |
Conclusion
Conclusion
Congratulations! You can now call yourself an experienced price shopper!!
After this activity you should have become a more savvy shopper by being able to utilize the unit rate concepts we've learned and applying them to real world scenarios. You should also have learned how to use the unit rate concepts to not only compare different sizes of the same product, but also compare those same products across the board at different grocery stores to find the best deal.
You can now teach your parents how to become effective price shoppers and quickly figure out which products to buy and where!
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Teacher Page
re you getting the better buy? In this WebQuest, you are going to apply the rate and unit rate concepts you have learned on a virtual grocery shopping trip. You will compare prices at two different stores, determine the unit rate for select items, figure out how much you would save over the course of a year, and persuade the audience on which item is a better deal.
Teacher Introduction
Mr.Confletti
Math Teacher
E-mail: anthony.confletti@lcps.org