SMART Notebook 8.1Oct 4 - 8:17 AMHow to use Notebook(TM) softwareLearn helpful tips and tricks for developing and presenting lesson activities.Teacher Notes Subject: Numeracy Topic: Percentage Title: Introducing Percentage Grade(s): 3, 4 and 5 Cross-curricular link(s): Non-Specific Intended learning outcome(s)· To learn the concept of percentage· To convert fractions to percentages· To convert percentages to decimals Recommended usage: Introduction or Plenary - whole class© 2004 SMART Technologies Inc. All rights reserved. For further information, please see copyright notice.Nov 28 - 2:57 PMIntroducing PercentageWindows(R) operating system and Mac OS X operating system software Submitted by Candace BeatonNov 28 - 1:57 PMWhat fraction of each grid is shaded?Fraction Review_100_100_100Nov 28 - 2:50 PMWhat is the ratio of shaded boxes to the total number of boxes?Ratio ReviewtototoNov 28 - 3:05 PMPercent is a ratio that compares a number to one hundred. The symbol for percent is %.Introduction to PercentageThe fractions and ratios on the previous pages can also be written as percentages.What is the definition of percentage?94:10094___10094%FractionRatioPercentRatioPercentFractionFill in the fraction, ratio and percent for this grid.Move box to reveal answer.Nov 28 - 3:10 PMHow is Percentage Calculated?If the denominator is 100:Step 1: Divide the numerator by the denominator.Step 2: Multiply the quotient by 100 to find the percentage.0.25 x 100 = 25%Shade in 25% of this grid using the red stylus.25 100 = 0.25_Example: 25100___Dec 2 - 10:47 AMTurn these fractions into percentages. Show your work on the following page. 30100 43100 78100__ 93100 32100Practice Time________Dec 2 - 11:29 AMShow Your WorkDec 2 - 10:37 AMIf the denominator is not 100:How is Percentage Calculated?If a fraction does not have a denominator of 100, convert it to an equivalent fraction with a denominator of 100 andthen write it as a percentage.Step 1: Convert to an equivalent fraction with a denominator of 100.= ?100=18 x 520 x 5= 90100Step 2: Divide the numerator by the denominator.Step 3: Multiply the quotient by 100 to find the percentage.0.90 x 100 = 90%Example:1820______1820__90 100 = 0.90_Dec 2 - 11:37 AMTurn these fractions into percentages. Show your work on the following page.121920 750__192545Practice Time________Dec 2 - 11:37 AMShow Your WorkDec 2 - 9:01 AMStep 1: Divide the numerator by the denominator.Step 2: Multiply the quotient by 100 to find the percentage.0.15 x 100 = 15%Another Way to Calculate PercentageIf the denominator is not 100:Example: 320__3 20 = 0.15_Dec 2 - 9:01 AMUsing the new method, calculate the percentage of these fractions. Show your work on the following page.781215 816__45 510Practice Time________Dec 2 - 9:01 AMShow Your WorkDec 2 - 1:33 PMPercentages as DecimalsTo convert a percentage to a decimal, move the decimal point two places to the left, adding zeros as needed.7% = 0.0718% = 0.18Examples:Write each percentage as a decimal:24%42%1%32.1%Dec 2 - 1:24 PMWrite each fraction as a percentage.Review Time 25100__1620__ 725__58__Dec 2 - 1:24 PM0.160.860.070.435Write each decimal as a percentage.Review TimeDec 2 - 1:24 PM42%7%19%22%Write each percentage as a fraction.Review TimeDec 2 - 1:24 PM17%45%32%81.5%Write each percentage as a decimal.Review TimeDec 2 - 9:01 AMWord ProblemsMrs. Waters gave 15 out of every 100 students an 'A' on their final exam. Mr. Wong gave 3 out of every 20 students an 'A'. Which teacher awarded a higher percentage of 'A's?The Rebels won 4 out of every 5 soccer games they played. The Hitmen won 7 out of every 8 games they played. Which team had a higher percentage of wins?Dec 2 - 1:44 PMWhat fraction of the grid is shaded?What percentage of the grid is shaded?Express the shaded portion of the grid as a decimal.Review TimeDec 2 - 1:51 PMFractionDecimal Percent7_85.5%0.723_4.03Review TimeComplete the chart.Dec 2 - 2:39 PMCreate More Review Questions