Lesson 3: Percents. What is Percent? Ratio Fraction Part-to-whole ratio - ex: Test: 45/50 = ??? -...
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Transcript of Lesson 3: Percents. What is Percent? Ratio Fraction Part-to-whole ratio - ex: Test: 45/50 = ??? -...
Lesson 3: PercentsLesson 3: Percents
What is Percent?What is Percent?
RatioRatio FractionFraction Part-to-whole ratioPart-to-whole ratio - ex: Test: 45/50 = ???- ex: Test: 45/50 = ??? Compares a whole number divided Compares a whole number divided
into 100 equal partsinto 100 equal parts What is a cent?What is a cent? - 1/100 of a - 1/100 of a dollardollar
When do we see percentages in real When do we see percentages in real life???life???
- Test Marks: What is your maximum - Test Marks: What is your maximum mark?mark?
- = 1! - = 1! - Sports- Sports
- Experiments- Experiments
- Flyers!!! 33% off!!!- Flyers!!! 33% off!!!
DiagramsDiagrams
Write these diagrams as fractions and percentages
Write 0.25 as…Write 0.25 as…
A fractionA fraction A ratioA ratio A percentageA percentage
- Divide 25/100 to get your - Divide 25/100 to get your percentagepercentage
What are the part-part-whole What are the part-part-whole relationships on a test?relationships on a test?
Part 1- Correct answersPart 1- Correct answers Part 2 – Incorrect AnswersPart 2 – Incorrect Answers Whole – Test itselfWhole – Test itself
QuestionsQuestions
How Would You Say the Following How Would You Say the Following in Mathematical Language?in Mathematical Language?
87/10087/100 0.240.24 3/103/10 0.090.09 0.0040.004
More QuestionsMore Questions
Let’s Use the Internet! Let’s Use the Internet!
For these questions…For these questions…
QuestionsQuestions
Page 188-189Page 188-189
- 1,2,7.9,11- 1,2,7.9,11