Introduction
Hello!
In this webquest, you will work with your table groups to help us eventually compare fractions!
My friend Jacob needs your help to bake some delicious cookies for our friend's birthday. I'm worried it will be a disaster without you. Unfortunately, he can only use one measuring cup. He needs your help to understandd which measuring cup to use and compare fractions!
It is important to note that for this webquest and activity, you may only use the links provided. If you start to search elsewhere, you could get the wrong information about Jacob's baking needs. We wouldn't want that would we?!
Task
HELP!
My dear friend Jacob is baking for an upcoming party. I'm worried about him however, and want to make sure he uses the right amout of ingredients so we don't have a cookie disaster!
Jacob is baking, and he wants to use only one measuring cup. He needs 1/2 cup of sugar and 3/4 cup of flour.
What size measuring cup do you think he should use (give two answers): 1/2 cup, 1/3 cup or 1/4 cup? Be sure to explain why you choose the two you did.
The first step to anwering this question is understanding the least commond denominator of these fractions. The 'processes' tab will show you how to do this and help my friend Jacob!
Your task is to work in your table groups to increase your knowledge of fractions using the websites available to you through this webquest.
You will need to help my dear friend Jacob so that he has the proper measuring cup to bake for his upcoming party. However, there is more than one way to get the same answer!
With your groups, you must make a poster or powerpoint presentation using your findings and show two different ways in which to solve Jacob's problem. In addition to the answer to the problem. Please clearly define somewhere on your paper or presentation what the term "least common denominator" is in your own words based on the information provided to you about the LCD.
Before making your poster or powerpoint, please go to the process steps and follow steps 1-6. You will need to refer back to this tab for Step 6.
Process
Step 1: First, if you are going to help Jacob, it will be important to do understand what the least common denominator is. Check out this website that gives you a quick, 'first-glance' at least common denominators:
http://www.math.com/school/subject1/lessons/S1U3L3GL.html
Step 2: Follow the link to read and learn about the least common denominator (LCD) with pictures:
http://www.mathsisfun.com/definitions/least-common-denominator.html
Step 3: Watch this 4 minute video that takes you through one method of understanding how to solve the least common denominator. Be sure to take notes and follow along:
https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/equivale…
Step 4: Then watch this video to learn about the 'ladder method' used as one method to help solve the least common denominator of two numbers. Please make sure your volume is at a reasonable level and not too loud so others can complete their assignments:
https://www.youtube.com/watch?v=y_F51D-r0j4
Step 5: Complete 7 problems, working together, from this website to find the least common denominator:
https://www.ixl.com/math/grade-6/least-common-denominator
Once you have completed 7 problems and have had them approved by me (send one member of the group to check in with me when this step is completed, you may then move on to step 4).
Step 6: You may now solve Jacob's problem and come up with two answers. Please refer back to the task page to discover your original task. You must now work together to solve the problem and come up with two answers to Jacob's problem. That is, two measuring cups he can use to bake his treats for the party! Once you have solved the task, then you may make a poster or powerpoint. Please ask Mrs. Steedman for the supplies necessary for a poster and if you would like to make a powerpoint, please follow the link below.
Powerpoint link:
http://www.instructables.com/id/How-to-Create-a-PowerPoint-Presentation…;
Evaluation
Below is the grading rubric for your proster/slideshow. Please be attentive to these areas in creating your project!
|
Category |
1 |
2 |
3 |
4 |
|
Mathematical Concept |
Project shows limited understanding of the underlying concepts or has little to no work. |
Product shows some understanding of the mathematical concepts. |
Product shows substantial understanding of the mathematical concepts. |
Product shows complete understanding of the mathematical concepts used. |
|
Collaboration/ Teamwork |
Partners did not work together effectively. |
Partners were engaged, but needed prompting to stay on-task. |
Partners were engaged, but had some trouble listening to others and/or working cooperatively. |
Group members were fully engaged, listening to suggestions of each member and worked cooperatively throughout lesson. |
|
Neatness and Organization |
The work appears sloppy and unorganized. It is hard to know what information goes together. |
The work is presented in an organized fashion, but may be hard to read and/or understand at times. |
The work is presented in a neat and organized fashion that is easy to read and understand. |
The work is presented in a neat, clear, organized fashion that is easy to read and understand. |
|
Mathematical, Academic Language and Terminology |
There is little use, or a lot of appropriate use, of terminology and notation. |
Correct terminology and notation are used, but it is sometimes not easy to understand what was done. |
Correct terminology and notation are usually used, making it fairly easy to understand what was done. |
Correct terminology and notation are always used, making it easy to understand what was done. |
|
Content/Vocabulary |
The authors do not incorporate math vocabulary. Some required elements are missing. |
The authors try to use some math vocabulary, but some meanings may be incorrect or unclear. Most required elements are included. |
The authors correctly use and define a few math terms. All required elements are included. |
The authors correctly use and define several math terms. All required elements are cleverly and completely addressed, as well as additional information. |
Conclusion
Thank you so much for helping my friend Jacob make the best birthday treats ever! Your help saved the party, and you might of learned something new in doing so! :)