Fraction nation

Fraction Nationa collaborative action design

All students need at one point in their school life to confront fractions. If they have manipulated lego bricks, helped to cook or to make things, they usually don’t have much trouble. Others however meet a wall, get frustrated and even give up on math. Our objective is to provide a tool to students that are struggling with fractions, or are just being introduced to fraction manipulation. We dream of a Moodle supported learning centre that provides information, that invites each learner to practice new skills, and real life projects needing in some cases team interaction. Our design includes a Moodle setup with ordered links in a logical sequence. Parallel to the academic work made of lectures and practice exercises, there are suggested projects, and a discussion room where students in different courses can converse.

The target audience is the young adolescent but should be able to include both younger and older children. Suggested team projects focus on young adolescent interests.

The business model is non-profit and entirely volunteer based and will be improved through interaction with the end users and teachers. Parents will be solicited to participate in the project through donations. Teachers will also be volunteering their time to monitor the discussion group, to encourage students, to check that progress of students is regular, and to provide helpful tips when asked.

fraction learning resources

Kahn Academy Fraction Links

Slide Shows

Games

Practice

Quests

Projects

Teacher Resources

KAHN ACADEMY LINKS

Kahn Academy Fraction Links

Numerator and Denominator of a Fractionhttp://www.khanacademy.org/math/arithmetic/fractions/v/numerator-and-denominator-of-a-fraction

Identifying Fraction Partshttp://www.khanacademy.org/math/arithmetic/fractions/v/identifying-fraction-parts

Equivalent fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/equivalent-fractions

Equivalent Fractions Examplehttp://www.khanacademy.org/math/arithmetic/fractions/v/equivalent-fractions-example

Comparing Fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/comparing-fractions

Comparing Fractions 2http://www.khanacademy.org/math/arithmetic/fractions/v/comparing-fractions-2

http://www.khanacademy.org/math/arithmetic/fractions/v/numerator-and-denominator-of-a-fraction

http://www.khanacademy.org/math/arithmetic/fractions/v/numerator-and-denominator-of-a-fraction

http://www.khanacademy.org/math/arithmetic/fractions/v/identifying-fraction-parts

http://www.khanacademy.org/math/arithmetic/fractions/v/equivalent-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/equivalent-fractions-example

http://www.khanacademy.org/math/arithmetic/fractions/v/comparing-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/comparing-fractions-2

Fractions in lowest termshttp://www.khanacademy.org/math/arithmetic/fractions/v/fractions-in-lowest-terms

Ordering Fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/ordering-fractions

Proper and Improper Fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/proper-and-improper-fractions

Mixed numbers and improper fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/mixed-numbers-and-improper-fractions

Converting Mixed Numbers to Improper Fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/converting-mixed-numbers-to-improper-fractions

Changing a Mixed Number to an Improper Fractionhttp://www.khanacademy.org/math/arithmetic/fractions/v/changing-a-mixed-number-to-an-improper-fraction

http://www.khanacademy.org/math/arithmetic/fractions/v/fractions-in-lowest-terms

http://www.khanacademy.org/math/arithmetic/fractions/v/fractions-in-lowest-terms

http://www.khanacademy.org/math/arithmetic/fractions/v/ordering-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/proper-and-improper-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/proper-and-improper-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/mixed-numbers-and-improper-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/mixed-numbers-and-improper-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/converting-mixed-numbers-to-improper-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/converting-mixed-numbers-to-improper-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/changing-a-mixed-number-to-an-improper-fraction

http://www.khanacademy.org/math/arithmetic/fractions/v/changing-a-mixed-number-to-an-improper-fraction

Changing an Improper Fraction to a Mixed Numberhttp://www.khanacademy.org/math/arithmetic/fractions/v/changing-an-improper-fraction-to-a-mixed-number

Adding Fractions with Like Denominatorshttp://www.khanacademy.org/math/arithmetic/fractions/v/adding-fractions-with-like-denominators

Subtracting Fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/subtracting--fractions Finding Common Denominators

http://www.khanacademy.org/math/arithmetic/fractions/v/finding-common-denominators Adding Fractions with Like Denominators

http://www.khanacademy.org/math/arithmetic/fractions/v/adding-fractions-with-like-denominators

Adding and subtracting fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/adding-and-subtracting-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/changing-an-improper-fraction-to-a-mixed-number

http://www.khanacademy.org/math/arithmetic/fractions/v/changing-an-improper-fraction-to-a-mixed-number



http://www.khanacademy.org/math/arithmetic/fractions/v/subtracting--fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/finding-common-denominators



http://www.khanacademy.org/math/arithmetic/fractions/v/adding-and-subtracting-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/adding-and-subtracting-fractions

Adding Mixed Numbershttp://www.khanacademy.org/math/arithmetic/fractions/v/adding-mixed-numbers

Adding Mixed Numbers with Unlike Denominatorshttp://www.khanacademy.org/math/arithmetic/fractions/v/adding-mixed-numbers-with-unlike-denominators

Subtracting Mixed Numbershttp://www.khanacademy.org/math/arithmetic/fractions/v/subtracting-mixed-numbers

Subtracting Mixed Numbers 2http://www.khanacademy.org/math/arithmetic/fractions/v/subtracting-mixed-numbers-2

Adding Mixed Numbers Word Problemhttp://www.khanacademy.org/math/arithmetic/fractions/v/adding-mixed-numbers-word-problem

Subtracting Mixed Numbers Word Problemhttp://www.khanacademy.org/math/arithmetic/fractions/v/subtracting-mixed-numbers-word-problem

http://www.khanacademy.org/math/arithmetic/fractions/v/adding-mixed-numbers

http://www.khanacademy.org/math/arithmetic/fractions/v/adding-mixed-numbers-with-unlike-denominators

http://www.khanacademy.org/math/arithmetic/fractions/v/adding-mixed-numbers-with-unlike-denominators

http://www.khanacademy.org/math/arithmetic/fractions/v/subtracting-mixed-numbers

http://www.khanacademy.org/math/arithmetic/fractions/v/subtracting-mixed-numbers

http://www.khanacademy.org/math/arithmetic/fractions/v/subtracting-mixed-numbers-2

http://www.khanacademy.org/math/arithmetic/fractions/v/subtracting-mixed-numbers-2

http://www.khanacademy.org/math/arithmetic/fractions/v/adding-mixed-numbers-word-problem

http://www.khanacademy.org/math/arithmetic/fractions/v/adding-mixed-numbers-word-problem

http://www.khanacademy.org/math/arithmetic/fractions/v/subtracting-mixed-numbers-word-problem

http://www.khanacademy.org/math/arithmetic/fractions/v/subtracting-mixed-numbers-word-problem

Adding fractions with different signshttp://www.khanacademy.org/math/arithmetic/fractions/v/adding-fractions-with-different-signs

•Multiplying Fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/multiplying-fractions

•Multiplying Mixed Numbershttp://www.khanacademy.org/math/arithmetic/fractions/v/multiplying--mixed-numbers

•Multiplying Fractions and Mixed Numbershttp://www.khanacademy.org/math/arithmetic/fractions/v/multiplying-fractions-and-mixed-numbers

•Multiplying Fractions Word Problemhttp://www.khanacademy.org/math/arithmetic/fractions/v/multiplying-fractions-word-problem

•Dividing fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/dividing-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/adding-fractions-with-different-signs

http://www.khanacademy.org/math/arithmetic/fractions/v/adding-fractions-with-different-signs

http://www.khanacademy.org/math/arithmetic/fractions/v/multiplying-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/multiplying--mixed-numbers

http://www.khanacademy.org/math/arithmetic/fractions/v/multiplying--mixed-numbers

http://www.khanacademy.org/math/arithmetic/fractions/v/multiplying-fractions-and-mixed-numbers

http://www.khanacademy.org/math/arithmetic/fractions/v/multiplying-fractions-and-mixed-numbers

http://www.khanacademy.org/math/arithmetic/fractions/v/multiplying-fractions-word-problem

http://www.khanacademy.org/math/arithmetic/fractions/v/multiplying-fractions-word-problem

http://www.khanacademy.org/math/arithmetic/fractions/v/dividing-fractions

Dividing Fractions Examplehttp://www.khanacademy.org/math/arithmetic/fractions/v/dividing-fractions-example

Dividing Fractions Word Problemhttp://www.khanacademy.org/math/arithmetic/fractions/v/dividing-fractions-word-problem

Reciprocal of a Mixed Numberhttp://www.khanacademy.org/math/arithmetic/fractions/v/reciprocal-of-a-mixed-number

Dividing Mixed Numbershttp://www.khanacademy.org/math/arithmetic/fractions/v/dividing-mixed-numbers

Dividing Mixed Numbers and Fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/dividing-mixed-numbers-and-fractions

Converting Fractions to Decimals Examplehttp://www.khanacademy.org/math/arithmetic/fractions/v/converting-fractions-to-decimals-example

http://www.khanacademy.org/math/arithmetic/fractions/v/dividing-fractions-example

http://www.khanacademy.org/math/arithmetic/fractions/v/dividing-fractions-example

http://www.khanacademy.org/math/arithmetic/fractions/v/dividing-fractions-word-problem

http://www.khanacademy.org/math/arithmetic/fractions/v/dividing-fractions-word-problem

http://www.khanacademy.org/math/arithmetic/fractions/v/reciprocal-of-a-mixed-number

http://www.khanacademy.org/math/arithmetic/fractions/v/reciprocal-of-a-mixed-number

http://www.khanacademy.org/math/arithmetic/fractions/v/dividing-mixed-numbers

http://www.khanacademy.org/math/arithmetic/fractions/v/dividing-mixed-numbers

http://www.khanacademy.org/math/arithmetic/fractions/v/dividing-mixed-numbers-and-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/dividing-mixed-numbers-and-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/converting-fractions-to-decimals-example

http://www.khanacademy.org/math/arithmetic/fractions/v/converting-fractions-to-decimals-example

•Converting fractions to decimalshttp://www.khanacademy.org/math/arithmetic/fractions/v/converting-fractions-to-decimals

•Decimals and Fractionshttp://www.khanacademy.org/math/arithmetic/fractions/v/decimals-and-fractions

•Converting Repeating Decimals to Fractions 1http://www.khanacademy.org/math/arithmetic/fractions/v/coverting-repeating-decimals-to-fractions-1

•Converting Repeating Decimals to Fractions 2http://www.khanacademy.org/math/arithmetic/fractions/v/coverting-repeating-decimals-to-fractions-2

•Representing a number as a decimal, percent, and fraction 2http://www.khanacademy.org/math/arithmetic/fractions/v/representing-a-number-as-a-decimal--percent--and-fraction-2

•Representing a number as a decimal, percent, and fractionhttp://www.khanacademy.org/math/arithmetic/fractions/v/representing-a-number-as-a-decimal--percent--and-fraction

http://www.khanacademy.org/math/arithmetic/fractions/v/converting-fractions-to-decimals

http://www.khanacademy.org/math/arithmetic/fractions/v/converting-fractions-to-decimals

http://www.khanacademy.org/math/arithmetic/fractions/v/decimals-and-fractions

http://www.khanacademy.org/math/arithmetic/fractions/v/coverting-repeating-decimals-to-fractions-1




http://www.khanacademy.org/math/arithmetic/fractions/v/representing-a-number-as-a-decimal--percent--and-fraction-2

http://www.khanacademy.org/math/arithmetic/fractions/v/representing-a-number-as-a-decimal--percent--and-fraction-2

http://www.khanacademy.org/math/arithmetic/fractions/v/representing-a-number-as-a-decimal--percent--and-fraction

http://www.khanacademy.org/math/arithmetic/fractions/v/representing-a-number-as-a-decimal--percent--and-fraction

Points on a number linehttp://www.khanacademy.org/math/arithmetic/fractions/v/points-on-a-number-line Ordering numeric expressionshttp://www.khanacademy.org/math/arithmetic/fractions/v/ordering-numeric-expressions_DUP_3

Converting fractions to decimals (ex1)http://www.khanacademy.org/math/arithmetic/fractions/v/converting-fractions-to-decimals--ex1

Converting fractions to decimals (ex2)http://www.khanacademy.org/math/arithmetic/fractions/v/converting-fractions-to-decimals--ex2

Adding subtracting mixed numbers 0.5 (ex1)http://www.khanacademy.org/math/arithmetic/fractions/v/adding-subtracting-mixed-numbers-0-5--ex-1

Adding subtracting mixed numbers 0.5 (ex2)http://www.khanacademy.org/math/arithmetic/fractions/v/adding-subtracting-mixed-numbers-0-5--ex-2

http://www.khanacademy.org/math/arithmetic/fractions/v/points-on-a-number-line

http://www.khanacademy.org/math/arithmetic/fractions/v/ordering-numeric-expressions_DUP_3

http://www.khanacademy.org/math/arithmetic/fractions/v/ordering-numeric-expressions_DUP_3

http://www.khanacademy.org/math/arithmetic/fractions/v/converting-fractions-to-decimals--ex1




http://www.khanacademy.org/math/arithmetic/fractions/v/adding-subtracting-mixed-numbers-0-5--ex-1




SLIDE SHOWS

Fractionshttp://www.kidsolr.com/math/fractions.html

Fractions: a Lesson for Beginning Level Learnershttp://www.slideshare.net/abevis/fractions-for-beginning-level-learners

Fractions: Decimals and Percentshttp://www.slideshare.net/nhughes/fractions-decimals-and-percents-995519

Fraction Action (Basic)http://www.slideshare.net/dorable/fraction-action222

What Are Fractionshttp://www.coolmath4kids.com/fractions/fractions-01-what-are-they-01.html

http://www.kidsolr.com/math/fractions.html

http://www.kidsolr.com/math/fractions.html

http://www.slideshare.net/abevis/fractions-for-beginning-level-learners

http://www.slideshare.net/abevis/fractions-for-beginning-level-learners

http://www.slideshare.net/nhughes/fractions-decimals-and-percents-995519

http://www.slideshare.net/nhughes/fractions-decimals-and-percents-995519

http://www.slideshare.net/dorable/fraction-action222

http://www.coolmath4kids.com/fractions/fractions-01-what-are-they-01.html

Fraction Dominoeshttp://www.dr-mikes-math-games-for-kids.com/fractions-dominoes.html

Fraction Dominoes 2http://www.enchantedlearning.com/dominoes/fractions/

Find Grampyhttp://www.visualfractions.com/FindGrampy/findgrampy.html

Cookies for Grampyhttp://www.visualfractions.com/Cookies/cookies.html

Dial Scalehttp://www.visualfractions.com/dialscale/dialscale.html

Ancient Egyptian Fractionshttp://www.visualfractions.com/egyptcakesancient/egyptcakesancient.html

The Mystery of the Missing Foodhttp://www.slideshare.net/nadine-rottner/fractions-mystery#btnNext

http://www.dr-mikes-math-games-for-kids.com/fractions-dominoes.html

http://www.enchantedlearning.com/dominoes/fractions/

http://www.visualfractions.com/FindGrampy/findgrampy.html

http://www.visualfractions.com/Cookies/cookies.html

http://www.visualfractions.com/Cookies/cookies.html

http://www.visualfractions.com/dialscale/dialscale.html

http://www.visualfractions.com/dialscale/dialscale.html

http://www.visualfractions.com/egyptcakesancient/egyptcakesancient.html

http://www.slideshare.net/nadine-rottner/fractions-mystery

PRACTICE

Fresh Baked Fractionshttp://www.funbrain.com/fract/index.html

Lessons on Fractionshttp://www.mathgoodies.com/lessons/toc_unit14.html

Fractionshttp://www.mathgoodies.com/lessons/fractions/

Comparing Fractionshttp://www.mathgoodies.com/lessons/fractions/compare.html

Dividing Fractions and Mixed Numbershttp://www.adaptedmind.com/p.php?tagId=913&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.html

Adding and Subtracting Fractions with Like Denominatorshttp://www.adaptedmind.com/p.php?tagId=773&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.html

http://www.funbrain.com/fract/index.html

http://www.mathgoodies.com/lessons/toc_unit14.html

http://www.mathgoodies.com/lessons/fractions/

http://www.mathgoodies.com/lessons/fractions/compare.html

http://www.adaptedmind.com/p.php?tagId=913&utm_expid=33853517-6&utm_referrer=http://www.adaptedmind.com/Sixth-Grade-Math-Worksheets-And-Exercises.html






Adding and Subtracting Fractions with Unlike Denominatorshttp://www.adaptedmind.com/p.php?tagId=774&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.html

Adding Fractions and Mixed Numbershttp://www.adaptedmind.com/p.php?tagId=784&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.htmlhttp://www.adaptedmind.com/p.php?tagId=784&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.html

Multiplying Fractionshttp://www.adaptedmind.com/p.php?tagId=802&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.htmlhttp://www.adaptedmind.com/p.php?tagId=802&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.htmlhttp://www.adaptedmind.com/p.php?tagId=802&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.html





http://www.adaptedmind.com/p.php?tagId=784&utm_expid=33853517-6&utm_referrer=http://www.adaptedmind.com/Sixth-Grade-Math-Worksheets-And-Exercises.htmlhttp://www.adaptedmind.com/p.php?tagId=784&utm_expid=33853517-6&utm_referrer=http://www.adaptedmind.com/Sixth-Grade-Math-Worksheets-And-Exercises.html






http://www.adaptedmind.com/p.php?tagId=802&utm_expid=33853517-6&utm_referrer=http://www.adaptedmind.com/Sixth-Grade-Math-Worksheets-And-Exercises.htmlhttp://www.adaptedmind.com/p.php?tagId=802&utm_expid=33853517-6&utm_referrer=http://www.adaptedmind.com/Sixth-Grade-Math-Worksheets-And-Exercises.htmlhttp://www.adaptedmind.com/p.php?tagId=802&utm_expid=33853517-6&utm_referrer=http://www.adaptedmind.com/Sixth-Grade-Math-Worksheets-And-Exercises.html








Dividing Fractions by Fractionshttp://www.adaptedmind.com/p.php?tagId=819&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.html

Equivalent Fractionshttp://www.adaptedmind.com/p.php?tagId=892&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.html

Ordering Fractionshttp://www.adaptedmind.com/p.php?tagId=896&utm_expid=33853517-6&utm_referrer=http%3A%2F%2Fwww.adaptedmind.com%2FSixth-Grade-Math-Worksheets-And-Exercises.html










PROJECTS

Make a Fraction Puzzlehttp://www.ehow.com/how_7772640_make-fraction-puzzle-project-school.html Fraction Arthttp://www.ehow.com/info_7949376_art-projects-using-fractions.html Fraction Collagehttp://www.education.com/activity/article/fraction-collage/

Bake a Batchhttp://www.education.com/activity/article/Bake_Fractions_middle/

Recipe Fractionshttp://www.education.com/slideshow/recipe-fractions/ Fraction Book Projecthttp://legoode.wmwikis.net/file/view/Class+Fraction+Book+Project.pdf

Data Collection Fractionshttp://www.superteacherworksheets.com/fraction-cont.html

http://www.ehow.com/how_7772640_make-fraction-puzzle-project-school.html

http://www.ehow.com/how_7772640_make-fraction-puzzle-project-school.html

http://www.ehow.com/info_7949376_art-projects-using-fractions.html

http://www.ehow.com/info_7949376_art-projects-using-fractions.html

http://www.education.com/activity/article/fraction-collage/

http://www.education.com/activity/article/Bake_Fractions_middle/

http://www.education.com/slideshow/recipe-fractions/

http://www.education.com/slideshow/recipe-fractions/

http://legoode.wmwikis.net/file/view/Class+Fraction+Book+Project.pdf

http://legoode.wmwikis.net/file/view/Class+Fraction+Book+Project.pdf

http://www.superteacherworksheets.com/fraction-cont.html

QUESTS

Fraction Landscape Designhttp://questgarden.com/92/39/5/091207125552/

What Is a Fractionhttp://questgarden.com/117/97/4/110923181034/index.htm

Fraction Problemhttp://questgarden.com/125/62/7/110428145851/

Fraction Frenzyhttp://questgarden.com/73/28/8/081114220419/

Fraction Refresherhttp://questgarden.com/28/87/9/060627104142/

Fraction Funhttp://questgarden.com/48/79/8/070427073732/index.htm

http://questgarden.com/92/39/5/091207125552/

http://questgarden.com/117/97/4/110923181034/index.htm




http://questgarden.com/48/79/8/070427073732/index.htm

RESOURCES

Fraction Vocabularyhttp://www.teachingideas.co.uk/maths/files/fractionswords.pdf

Visual Fractionshttp://www.visualfractions.com/index.htm

A Tour of Fractionshttp://mathforum.org/paths/fractions/

How to Teach Fractionshttp://www.mathgoodies.com/articles/teach_fractions.html

http://www.teachingideas.co.uk/maths/files/fractionswords.pdf

http://www.teachingideas.co.uk/maths/files/fractionswords.pdf

http://www.visualfractions.com/index.htm

http://www.visualfractions.com/index.htm

http://mathforum.org/paths/fractions/

http://www.mathgoodies.com/articles/teach_fractions.html

Introduction Derek Owenhttp://www.youtube.com/watch?v=R3osz_fU-FY

Proper/Improper Fractions Derek Owenhttp://www.youtube.com/watch?v=sd2dN_o-un4

Prealgebra Fractions Derek Owenhttp://www.youtube.com/watch?v=O9k9RCzA1Ks

http://www.youtube.com/watch?v=R3osz_fU-FY

http://www.youtube.com/watch?v=sd2dN_o-un4

http://www.youtube.com/watch?v=O9k9RCzA1Ks

Fraction nation

Education

Transcript of Fraction nation