The Conversion Process Created by: Cristina Salas Leal October 15, 2007

Objective  The students will understand how to convert rational numbers between representations.  TEKS (6.1B) The student is expected to generate equivalent forms of rational numbers including whole numbers, fractions, and decimals.

Math Journal  Write and answer the following questions in your math journal.  What is a fraction?  What is a decimal?  What is a percent?  When is it best to use a fraction as opposed to a decimal?  When is it best to use a percent as opposed to a decimal?

You can convert any form to any other form Decimal Percent Fraction

Jose’s parents bought eight pizzas for the math club meeting. The four officers were the only people who could attend. How much pizza would each person receive if they divided them evenly?

Divide 8 pizzas by 4 people Each person will receive 2 pizzas 8 divided by 4 equals 2.

Jose’s parents bought pizza again for the math club meeting. This time they only purchased two pizzas for the four officers. How much pizza would each person receive if they divided them evenly? Each person would receive half a pizza

Fraction Conversions Fraction Divide the numerator by the denominator Decimal Create an equivalent fraction with 100 as the denominator Drop the denominator Add a percent sign Percent

Convert a Fraction to a Decimal  The man on the horse analogy  The man Numerator sits on his horse Denominator  Who goes inside the division house? The man – numerator  Who stays outside the division house? The horse - denominator  Always remember to divide the numerator by the denominator

Decimal Conversions Decimal All digits become the numerator Use the last place value as the denominator Fraction Multiply the decimal by 100 Drop the decimal point Add a percent sign Percent

Decimals to Fractions Watch this math song video clip created by a teacher:  Click here - Fractions to Decimals SongFractions to Decimals Song

Conversion Decimal to Percent 0.25 = 25% Move the decimal point two places to the right Drop decimal point Add a percent sign Watch a Video Clip Click here - Watch n’ Learn Math ClipsWatch n’ Learn Math Clips

Percent Conversions Percent Drop percent sign Move the decimal two places to the left Decimal Drop percent sign Place 100 as the denominator Fraction.

Internet Websites  Answer the Challenge Questions Math Goodies-Game  Play the “Comparing All Three Game” BBC-Comparing fractions, decimals and percentages game

Thank You