3RD GRADE FRACTIONS!

RACHEL VOLPE

FEBRUARY 12, 2012

February 12, 2012 11:00pm Rachel Volpe. Math 1

WHAT ARE FRACTIONS?

A fraction is part or portion of a whole.

February 12, 2012 11:00pm Rachel Volpe. Math 2

WHAT ARE FRACTIONS

• There are 30 runts

• One 3rd of the runts are pink

• One 6th (1/6) of the runts are yellow

February 12, 2012 11:00pm Rachel Volpe. Math 3

HOW TO WRITE FRACTIONS

WHAT WE SEE WHAT IS MEANS

•The 1 is the numerator

• the number above the fraction bar

•The 2 is the denominator

• The number below the fraction bar

February 12, 2012 11:00pm Rachel Volpe. Math 4

COMMON FRACTIONS• There are many fractions

• Here are some common ones• One half (1/2)

• One third (1/3)

• One fourth (1/4)

• One Eighth (1/8)

February 12, 2012 11:00pm Rachel Volpe. Math 5

FRACTIONS CAN BE FOUND IN EVERYDAY LIFE

FRACTION

1. One half (1/2) of a rectangle

2. A third ( 1/3) of a circle

EXAMPLE

1. A candy bar cut in half (1/2)

2. A third of a cake

February 12, 2012 11:00pm Rachel Volpe. Math 6

FRACTIONS CAN BE FOUND IN EVERYDAY LIFE

FRACTION

1. One 4th (1/4) of a square

2. One 8th (1/8) of a circle

EXAMPLE

1. A brownie cut into 4 pieces

2. A pizza cut into 8 pieces

February 12, 2012 11:00pm Rachel Volpe. Math 7

• There are 24 M&Ms

• Half of the M&Ms is 12 M&Ms

REAL LIFE FRACTIONS

February 12, 2012 11:00pm Rachel Volpe. Math 8

REAL LIFE FRACTIONS• There are 8

sour patch kids

• One fourth (1/4) are green

February 12, 2012 11:00pm Rachel Volpe. Math 9

http://www.youtube.com/watch?v=vjjv1CVjwso

February 12, 2012 11:00pm Rachel Volpe. Math 10

WHAT HAVE YOU LEARNED?1. How many of

the M&Ms are red?

2. How many of the M&Ms are yellow?

3. How many of the M&Ms are green?

February 12, 2012 11:00pm Rachel Volpe. Math 11

ANSWERS1. 1/4 of the

M&Ms are red

2. 1/8 of the M&Ms are yellow

3. 1/12 of the M&Ms are green

February 12, 2012 11:00pm Rachel Volpe. Math 12

ACTIVITIES• Cookie activity

• http://www.teacherlink.org/content/math/interactive/flash/kidsandcookies/kidcookie.php

• Mystery Picture

• http://www.dositey.com/2008/math/mistery2.html• Melvin Makes a Match

• http://pbskids.org/cyberchase/math-games/melvins-make-match/

February 12, 2012 11:00pm Rachel Volpe. Math 13

REFERENCES

February 12, 2012 11:00pm Rachel Volpe. Math 14

Brownies. Retrieved from http://mostlyaboutchocolate.com/blue-basil-holiday-brownies-

selection/

Cake. Retrieved from http://www.dummies.com/how-to/content/how-to-recognize-types-of-

fractions.html

Candy Bar. Retrieved from http://www.slashfood.com/tag/snickers/

Cookie activity. Retrieved from

http://www.teacherlink.org/content/math/interactive/flash/kidsandcookies/kidcookie.php

Fractions. Retrieved fromhttp://illingsworth4.pbworks.com/w/page/10945612/Fractions

M&Ms. Retrieved from http://en.wikipedia.org/wiki/File:M%26M's_Plain.jpg

Melvin Makes a Match. Retrieved from http://pbskids.org/cyberchase/math-games/melvins-

make-match/

Mystery Picture. Retrieved from http://www.dositey.com/2008/math/mistery2.html

Pizza. Retrieved from http://www.zazzle.com/pizza_pie_photosculpture-153869878758637406

Runts. Retrieved from http://www.amazon.com/Assorted-Flavored-Fruit-Runts-

1Lb/dp/B000JZE9K8

Simple Fractions Puzzle Set. Retrieved from http://blogs.bgsu.edu/crcnews/2008/12/02/simple-

fractions-puzzle-set/

Sour Patch Kids. Retrieved from http://sweets.seriouseats.com/2011/10/candy-a-day-sour-patch-

kids.html