Chapter 4 Fractions, Decimals, and Percent.

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# Chapter 4 Fractions, Decimals, and Percent. - PowerPoint PPT Presentation

Chapter 4 Fractions, Decimals, and Percent. Day…. Converting Measurements Fractions to Decimals Decimals to Fractions Decimals to Percent Percent to Decimals. Day 1. Bell Work. Write each ratio as a part to part, part to whole, and a whole to part .

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### Chapter 4Fractions, Decimals, and Percent.

Day…..
• Converting Measurements
• Fractions to Decimals
• Decimals to Fractions
• Decimals to Percent
• Percent to Decimals
Bell Work

Write each ratio as a part to part, part to whole, and a whole to part.

• 18 out of 24 students take a music class in middle school.
• Out of 12 cats, three have stripes.
• 7 out of 8 flowers are pink.
• Kristen sold 475 out of 500 boxes of Girl Scout cookies.
• 6 out of 30 students get an A in Mrs. E’s class.

Vocabulary
• an equation that shows two ratios are equivalent.

Proportion -

• a number that represents part of a whole or part of a set.

Fraction -

a representation of a real number using the base ten and decimal notation, such as 201.4, 3.89, or 0.0006.

Decimal-

Percent -

a ratio that compares a number to 100.

a number that can be written as a fraction

Rational Number -

a line on which numbers are marked at intervals, used to illustrate simple numerical operations.

Number Line -

I Can….

Convert measurements using proportional reasoning.

Converting Measurements

Essential Understanding:

To convert measurements from one unit to another, you can use your knowledge of ratios to create a poprpotion.

Example:

Mrs. E’s desk is 4 ft. long. How many inches is it?

Practice

Wrap it Up
• Review
• Questions
• Exit Tickets
Bell Work

Stacey and Ben are planning a road trip from Nashville, TN to Atlanta, GA. Ben uses a ruler to measure the distance on a map. He tells Stacey they will have to travel 24inches. If the map scales shows 1 inch = 10 miles, how many miles will they travel? How many miles will they travel round trip?

Vocabulary
• an equation that’s shows two ratios are equivalent.

Proportion -

• _________
• _______
• ______
• _______
• _____________
• ___________
• a number that represents part of a whole or part of a set.

Fraction -

a representation of a real number using the base ten and decimal notation, such as 201.4, 3.89, or 0.0006.

Decimal-

Percent -

a ratio that compares a number to 100.

a number that can be written as a fraction

Rational Number -

a line on which numbers are marked at intervals, used to illustrate simple numerical operations.

Number Line -

I Can….

Convert fractions to decimal.

Converting Fractions to Decimals

Essential Understanding:

• To convert a fraction to a decimal you simply divide the numerator by the denominator.

Examples:

Practice

Wrap it Up
• Review
• Questions
• Exit Tickets
Bell Work

Convert each fraction to a decimal.

= = 5 = = =

= = = = =

Vocabulary
• an equation that’s shows two ratios are equivalent.

Proportion -

• _________
• _______
• ______
• _______
• _____________
• ___________
• a number that represents part of a whole or part of a set.

Fraction -

a representation of a real number using the base ten and decimal notation, such as 201.4, 3.89, or 0.0006.

Decimal-

Percent -

a ratio that compares a number to 100.

a number that can be written as a fraction

Rational Number -

a line on which numbers are marked at intervals, used to illustrate simple numerical operations.

Number Line -

I Can….

Convert decimals to fractions.

Convert Decimals to Fractions

Essential Understanding:

To convert a decimal to a fraction you simply identify the place value of the last decimal place and use it as the denominator of the fraction. Simplify when possible.

Examples:

.1 .25 .375 .4213

• Clear your desk of everything but a pencil and a calculator.
Wrap it Up
• Review
• Questions
• Exit Tickets
Bell Work

Convert each decimal to a fraction.

.2 = .33 = .236 = .8764 =

.01 = .5 = .0023 = .64 =

.15 = .45 = 3.75 = 1.5 =

Vocabulary
• an equation that’s shows two ratios are equivalent.

Proportion -

• _________
• _______
• ______
• _______
• _____________
• ___________
• a number that represents part of a whole or part of a set.

Fraction -

a representation of a real number using the base ten and decimal notation, such as 201.4, 3.89, or 0.0006.

Decimal-

Percent -

a ratio that compares a number to 100.

a number that can be written as a fraction

Rational Number -

a line on which numbers are marked at intervals, used to illustrate simple numerical operations.

Number Line -

I Can….

Convert decimals to percent.

Converting Decimals to Percent.

Essential Understanding:

• To convert a decimal to a percent, you simply multiply the decimal by 100 and ass a percent sign (%).
• The easiest way to do this, is to use you knowledge of Powers of 10 (move the decimal to the right two places)

Examples:

.25 = .1 = .375 = = =

r

Practice

Wrap it Up
• Review
• Questions
• Exit Tickets
Bell Work

Convert each decimal to a percent.

.05 = .1 = .25 = .01 =

2.25= .82 = .12 = .064 =

.333 = .6 = .9 = .0001 =

Vocabulary
• an equation that’s shows two ratios are equivalent.

Proportion -

• _________
• _______
• ______
• _______
• _____________
• ___________
• a number that represents part of a whole or part of a set.

Fraction -

a representation of a real number using the base ten and decimal notation, such as 201.4, 3.89, or 0.0006.

Decimal-

Percent -

a ratio that compares a number to 100.

a number that can be written as a fraction

Rational Number -

a line on which numbers are marked at intervals, used to illustrate simple numerical operations.

Number Line -

I Can….

Convert percent to decimals.

Converting Decimals to Percent.

Essential Understanding:

• To convert a percent to a decimal, you simply divide by 100 and remove the percent sign (%).
• The easiest way to do this, is to use you knowledge of Powers of 10 (move the decimal to the left two places)

Examples:

5% = 25% = 46% = = =

• Clear your desk of everything but a pencil and a calculator.
pOp Quiz
• Take out a pencil and a calculator
• Clear everything else from your desk
Wrap it Up
• Classroom Store
• Exit Tickets
Computer Station
• http://learnzillion.com/lessons/842-define-unit-rate-using-double-number-line
• http://learnzillion.com/lessons/613-solve-rate-problems-using-double-number-lines
• http://learnzillion.com/lessons/612-solve-for-missing-values-in-rate-problems-using-a-table

(6 minutes per video)

Station Rotations
• Write your exit ticket.
• Pack up everything but a pencil.
• You will have 15 minutes to complete each rotation