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# Unit 5

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### Unit 5

1. 1. Fractions Percents Circle graphs Unit 5
2. 2. <ul><li>Add fractions with like denominators </li></ul><ul><li>Order and compare fractions </li></ul><ul><li>Convert between fractions and percents </li></ul><ul><li>Draw a circle graph for a set of data </li></ul><ul><li>Measure pieces of a circle graph </li></ul><ul><li>Interpret a circle graph </li></ul><ul><li>Convert between fractions and mixed numbers </li></ul><ul><li>Find equivalent fractions </li></ul>Key Goals Click Me for Help! Click Me to Float On! Click on me now for an interactive tutorial on fractions!
3. 3. <ul><li>A fraction has two parts: the numerator and the denominator </li></ul><ul><li>The numerator is the number on top, the denominator is the one that’s DOWN on the bottom. </li></ul><ul><li>The numerator is the NUMBER of pieces you have </li></ul><ul><li>The denominator is the size of the pieces </li></ul>Add fractions with like denominators Click me to play a game! Click me to create a worksheet!
4. 4. <ul><li>1/6 of the sections on the 1 st ball are red. </li></ul><ul><li>3/6 of the sections on the second ball are red. What is the fraction of red sections? </li></ul>Try It Out 1/6 + 3/6 = 4/12 7/9 4/6 2/12 The answer is 4/6 because the size of the pieces are sixths. When you add 1/6 to 3/6 you add the numerators (1 +3) and keep the denominator the same (6).
5. 5. <ul><li>4/9 + 3/9 = </li></ul>Try It Out 7/18 1/9 7/9 1/18 The answer is 7/9 because the size of the pieces are ninths. When you add 4/9 to 3/9 you add the numerators (4 +3) and keep the denominator the same (9).
6. 6. 6/8 + 7/8 = Try It Out 13/16 1/8 8/13 13/8 The answer is 13/8 because the size of the pieces are eighths. When you add 6/8 to 7/8 you add the numerators (6 +7) and keep the denominator the same (8).
7. 7. <ul><li>The numerator is the NUMBER of pieces you have </li></ul><ul><li>The denominator is the size of the pieces </li></ul><ul><li>If something is cut into more pieces those pieces are going to be smaller. </li></ul><ul><li>Play a game </li></ul>Order and compare fractions
8. 8. <ul><li>One strategy for comparing fractions is to think about their relationship to one and zero. For example, 5/6 is almost all of the pieces, so it would be close to 1; 1/6 is close to none of the pieces, so it would be closer to zero. </li></ul><ul><li>Another strategy is to convert the fractions to a decimal and then compare the decimals. (numerator divided by denominator = decimal) </li></ul><ul><li>A third strategy is to find a common denominator among your fractions and compare the numerators. </li></ul>It helps to simplify the fractions! If you need a set of fraction bars , click here Strategies for comparing and ordering fractions…
9. 9. Try It Out…. 4/9 _____ 6/9 < > = The correct answer is 4/9 < 6/9 because in these two fractions, the denominators are the same. Therefore, the pieces are the same size. Four of these pieces are less than six. 1/9 1 / 9 1 / 9 1 / 9 1 / 9 1 / 9 1 / 9 1 / 9 1 / 9 1/9 1/9 1/9 1/9 1/9 1 / 9 1/9 1/9 1/9
10. 10. Try It Out…. 8/9 _____ 7/8 < > = 8/9 is > 7/8 In each of these two fractions, there is all but one piece. However, because 9ths are smaller than 8ths, the remaining 1/9 is smaller than the remaining 1/8.
11. 11. Try It Out…. 1/3 _____ 5/12 < > = 1/3 is < 5/12 If you change 1/3 into an equivalent fraction, it would be equal to 4/12. 4 out of 12 is less than 5 out of 12.
12. 12. Convert between fractions and percents <ul><li>Fractions and percents are both ways of representing a part out of a whole. </li></ul><ul><li>An equivalent percent for a decimal or a fraction can be found by finding an equivalent fraction out of 100 since “percent” means “per 100”. In this case, the numerator would be the percent. </li></ul><ul><li>A fraction or decimal can be formed from a percent by creating a fraction where the numerator is the percentage and the denominator is 100, or by dividing the percent by 100. </li></ul>
13. 13. Here are some examples…. ¾ = 75/100 = 75% 2/5 = 40 / 100 = 40% 14/50 = 28/100 = 28% Click on the small pails to play practice games! 34% = 34/100 = 17/50 125% = 125/100 = 1 ¼ .5% = .5 /100 = 1/200
14. 14. Click on the characters to play fraction and percent games and activities!