Mastering Percentages and Conversions Lesson Plan

1. What is 100% increase of 10? Question of the day

2. Agenda • 1. Collect quiz or test corrections • 2. Notes on percent, decimals and fractions • 3. Flow chart • 4. Review questions • 5. Daily assignment • 6. Exit ticket

3. Converting decimals, percents and fractions Notes

4. Fraction to decimal • Numerator (top number) divided by denominator (bottom number) • Example • this would be 5 divided by 8 • *it does not matter which is bigger, just top divided by bottom. That is also just how to type it into calculator.

5. Decimal to percent • Multiple decimal by 100 • Some students remember it by moving two decimal spots right • Why would it need to be 100? • Why two decimal spots? • *I remember this because it does not have a percent, which looks like a 100, it needs a 100. By multiplying it I am giving it a percent sign

6. Examples • Example • .18 X 100=18%. .09 X 100 =9% • 1.86 moved two decimal spots would be186%

7. Percent to decimal • Divide percent by 100 • Some students move it two spots left • *I remember because it has a % and I need to get rid of it divide it away • Example • 43%/100 = .43. 6%/100 = .06 • 58% = .58

8. Decimal to fraction • The numbers in decimal will be the numerator • The denominator of the fraction will be the place value of the last digit in the decimal. • Simplify • Examples • .06 = because the 6 is in the hundredths place • Simplify

9. Fraction to percent • Fraction needs to be converted to decimal first • Then from decimal into percent • Example • =.125 .125 X 100= 12.5%

10. Percent to fraction • Change percent to decimal • Change decimal to fraction • Simplify • Example • 124%/100 = 1.24 = • Because the 4 digit is in the hundredths place

11. You try

12. Flow chart Decimals Fractions Percents

13. Assignment • Workbook p. 277

14. Exit ticket • Change .03 into a percent and fraction