[Surfnetkids: 24 Feb 2010] Ratio and Proportion

[Surfnetkids Free Newsletter] Ratio and Proportion


Surfing the Net with Kids FREE Newsletter
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#1. February 24, 2010

Barbara J. Feldman
Dear Reader,

As I notice Black History topics rising in popularity over at Surfnetkids.com, it serves as a gentle reminder that perhaps an overview of what’s available would be appropriate. So, here goes.

Black History Month

Black History Month Quizzes

Martin Luther King, Jr.

Martin Luther King Coloring Pages

Martin Luther King Quizzes

Martin Luther King Crossword

Rosa Parks

Rosa Parks Word Search

Rosa Parks Quiz

Tuskagee Airmen

Tuskagee Airman Word Search

Sojourner Truth

Booker T. Washington

Booker T. Washington Quiz

Little Rock Nine

Little Rock Nine Quiz

Emancipation Proclamation

And last, but not least, seven pages of Black History sites recommended by readers like you, over at SharingLinks.com

See ya on the Net,
Barbara J. Feldman
"Surfing the Net with Kids"

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#3. Ratio and Proportion

by Barbara J. Feldman

Ratio and Proportion Printable (** for premium members only)

A ratio is the mathematic relationship between two numbers, where one is divided by the other. A proportion is an equation where two ratios are equal. A typical use might be something like this. The ratio of boys to girls on the bus is five to four. If the teacher counts fifteen boys, how many girls are on the bus?

Algebra Help: Proportion Basics
Algebra Help’s four-page introduction to proportion, means and extremes concludes with a twenty-question worksheet that includes both a manual answer sheet and a step-by-step solution to each problem. “The four parts of the proportion are separated into two groups, the means and the extremes, based on their arrangement in the proportion. Reading from left-to-right and top-to-bottom, the extremes are the very first number, and the very last number.”

Math.com: Ratios and Proportions
“In a horror movie featuring a giant beetle, the beetle appeared to be 50 feet long. However, a model was used for the beetle that was really only 20 inches long. A 30-inch tall model building was also used in the movie. How tall did the building seem in the movie?” Math.com’s lesson is divided into four steps: First Glance, In Depth, Examples and Workout. The Workout consists of a ten problems with automatic grading. Unfortunately “Check Your Answer” does not work in Firefox 3.5 but does in Internet Explorer 8.

Purple Math: Ratios
This seven-page lesson from Purple Math has lots of word problems where the work is shown, and the answer explained. “Conversion factors are simplified ratios, so they might be covered around the same time that you’re studying ratios and proportions. For instance, suppose you are asked how many feet long an American football field is. You know that its length is 100 yards. You would then use the relationship of 3 feet to 1 yard, and multiply by 3 to get 300 feet.”

… Click to continue Ratio and Proportion .

#4. Printables Club Members Also Get …

Surfnetkids Printables Club Members also get the following printables to use in the classroom, the computer lab, the school library, or to send home with students:
Ratio and Proportion Printable
Fractions Printable
Fibonacci Numbers Printable
Math Puzzles Printable
*** Are you curious? Get your own ten-day trial membership:

#5. Related Games

Math Games

#6.Surfing the Calendar

Wilhelm Grimm’s Birthday (one of the Grimm Brothers)
Feb 24, 1786

George Harrison’s Birthday
Feb 25, 1943

First U.S. Chartered Passenger Railroad Service
Feb 28, 1827

Jim Watson and Francis Crick Discover the DNA Double Helix
Feb 28, 1953

Irish American Heritage Month

National Craft Month

National Nutrition Month

Music in Our Schools Month

Women’s History Month

National Cheerleading Safety Month

#7.Quote of the Week

A liar will not be believed, even when he speaks the truth. ~~ Aesop ~~ (550 BCE) ancient Greek philosopher, fable author .Click here for more truth quotes.

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