Introduction
WELCOME!
This WebQuest is about FRACTIONS! Fractions are used everyday in our lives. Can you believe that? This means that they are very important to know. If you like pizza, baking a cake, telling time or even shopping then you use fractions often.
Fractions are also very fun! In this WebQuest you are going to learn how to add and subtract fractions with common denominators!
Mrs. Miller's Resource Classroom
Grade: 4th Grade
Subject: Math
CCSS: 4.NF.A.2.
Task
To become an expert at adding and subtracting fractions you will need to follow the directions in the lesson very carefully.
During the lesson you will:
1. Watch a video that explains how you add fractions with a common denominator.
2. Add 5 pairs of fractions using visual aids to check for understanding.
3. Watch a video that explains how to subtract fractions with a common denominator.
4. Subtract 5 pairs of fractions using visual aids to check for understanding.
5. Accurately complete problems involving addition and subtraction of fractions, without the use of visual aids.
6. Play at least 2 fraction games that involve adding and subtracting fractions.
Process
1. Watch this video on Adding Fractions with common denominators.
[Video: https://www.youtube.com/watch?v=EJjnEau6aeI]
2. Add these 5 pairs of fractions using visual aids to check for understanding. (Show your work on scatch paper you can turn in)
3. Watch this video on Subracting fractions with common denominators.
[Video: https://www.youtube.com/watch?v=UbUdyE1_b9g]
4. Subtract these 5 pairs of fractions using visual aids to check for understanding. (Show your work on scatch paper you can turn in)
5. Accurately complete THREE addition problems and THREE subtraction problems without the use of visual aids. You may pick any problems that you'd like. You need 6 total! (Show your work on scatch paper you can turn in)
6. Play at least 2 fraction games that involve adding and subtracting fractions. (Write down your fastest time on the timed games and see if you can be the fastest in the class to complete it!)
http://www.abcya.com/adding_fractions.htm
http://www.math-play.com/adding-and-subtracting-fractions-game.html
http://www.mathgametime.com/games/speedway-add-subtract-fractions
http://www.sheppardsoftware.com/mathgames/fractions/mathman_add_subtrac…
Evaluation
EVALUATION RUBRIC:
|
|
Beginning (1 point each) |
Developing (3 points each) |
Accomplished (5 points each) |
Score |
|
Adding fractions with the same denominator using visuals |
You completed all the questions with only 1 or 2 correct. |
You completed all the questions with only 3-4 questions correct. |
You completed all the questions with all 5 questions correct. |
|
|
Subtracting fractions with the same denominator using visuals |
You completed all the questions with only 1 or 2 correct. |
You completed all the questions with only 3-4 questions correct |
You completed all the questions with all 5 questions correct. |
|
|
Adding and Subtracting fractions with the same denominator without using visuals |
You completed all the questions with only 1-2 correct. |
You completed all the questions with only 3-6 questions correct |
You completed all the questions with all 6 questions correct. |
|
|
Used prior knowledge to simplify fraction |
You completed all the questions with only 1 or 2 correct. |
You completed all the questions with only 3-4 questions correct |
You completed all the questions with all 6 questions correct. |
|
Total Score ____/20
Conclusion
Wow, GOOD JOB! You are finished with this WebQuest. You now know how to add and subtract fractions with common denominators. This WebQuest has helped you learn that when you add fractions with a common denominator you add the numerators but you keep the same denominator. When you subtract fractions with a common denominator you subtract the numerators but you keep the same denominator.