Adding & Subtracting Fractions with Like Denominators

Introduction

When adding and subtracting fractions, it's important to start with a good foundation.  You must first be able to add and subtract fractions with like denominators before you can add ones with unlike denominators.  In this webquest, you will hone your fraction addition and subtraction skills.

Task

Your mission, which you must accept, is to visit the listed websites, watch the videos, and play some games to build your skills in adding and subtracting fractions with like denominators.

Process

Begin your journey at Kahn Academy.  Watch the videos below and take any notes you deem necessary on the worksheet provided:

Addition: https://www.khanacademy.org/math/arithmetic/fractions/Adding_and_subtracting_fractions/v/adding-fractions-with-like-denominators

Subtraction: https://www.khanacademy.org/math/arithmetic/fractions/Adding_and_subtracting_fractions/v/subtracting-fractions

Then, get some practice in.  Answer 5 questions of each addition and subtraction.  Record your questions and answers on the worksheet.

Addition: https://www.khanacademy.org/math/arithmetic/fractions/Adding_and_subtracting_fractions/e/adding_fractions_with_common_denominators

Subtraction: https://www.khanacademy.org/math/arithmetic/fractions/Adding_and_subtracting_fractions/e/subtracting_fractions_with_common_denominators

Enjoy a rap: https://www.youtube.com/watch?v=UqdPwO1wSiM

Time for another video!  Head over to https://learnzillion.com and watch the video.  and in the search bar, type in LZ120.  If it pulls it up (cross your fingers), watch the video and take notes on the worksheet in the space provided.

Time for some more practice.  Visit ixl at http://www.ixl.com/math/grade-4/add-and-subtract-fractions-with-like-denominators to get even more practice.  Do at least 10 questions.  Record the questions and your answers on the worksheet.

Finally, it's play time!  You can play one or all of the following games to have some fun practicing your new addition and subtraction skills.

Fruit Shoot - do level 1a and/or level 1b.  Challenge yourself with level 2!
http://www.sheppardsoftware.com/mathgames/fractions/FruitShootFractionsAddition.htm

Math Man
http://www.sheppardsoftware.com/mathgames/fractions/mathman_add_subtract_fractions.htm

http://www.mathgametime.com/games/speedway-add-subtract-fractions

Feed Me Fractions - grow your monster by feeding it pairs of fractions that add up to one whole.

http://www.abcya.com/adding_fractions.htm

After you've had your fun, head to the evaluation tab to find out how you will get your grade for this activity.

Evaluation

You will be graded for participation based on your worksheet, which you will turn in to Ms. Svajda.  You will also create a short, reasonable quiz with an answer key to help show Ms. Svajda how much you have learned.  You will write this quiz using a word processing software and you can either email it to Ms. Svajda or you can print it off and submit a hard copy.

Your quiz must be at least 5 questions, have both addition and subtraction questions, and be something that would be fair to give to your classmates.  Not too hard, but not too easy.  Somewhere right in the middle.  It's your chance to pretend you're the teacher.