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## Ratios

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**Ratios**SOL 6.1 By Kathy Woodard 2011**Warm-up 1**Practice multiplication facts at http://www.aaastudy.com/mul39ex2.htm Now use this site to answer question #1: http://illuminations.nctm.org/ActivityDetail.aspx?ID=64 2. Simplify each fraction: 3. Evaluate each expression: 4. Write the next 3 terms in each pattern: 64, 32, 16, 8, ______, _______, _______ 14, 21, 28, 35, ______, ______, _______**“Bad Date” Video**http://www.schooltube.com/video/0004acc0553a4d7ab592/Matrix-Learning-Bad-Date-by-NMSU**SOL 6.1 Ratios**compare two sets of data (part to whole, or part to part) a/b or a to b a:b**2 to 1**2:1 2/1 or Part to Part Ratios What is the ratio of red cubes to green cubes?**2 to 5**2:5 2/5 or Part to Whole Ratios What is the ratio of red cubes to all the cubes?**Simplify a Ratio**A ratio can be simplified like a fraction. Ratio of red cubes to all the cubes: 2 to 6 2:6 1 to 3 1:3 Simplifies to**http://www.brainpop.com/math/ratioproportionandpercent/ratios/**http://www.brainpop.com/math/ratioproportionandpercent/ratios/**12:10**Simplify it 3 / 4 / or 20 TO 15 4 to 3**Remember:**1 L = 1000 ml /// 1000 ml**Be careful about the order!**What is the ratio of mice to cats? Write the ratio with words & then fill in the numbers: Mice = 3 Cats 5 or**7:14**butter to flour?**What is the ratio of…**• Cats to Hamsters at Pet Place? • Dogs at Your Zoo to dogs at Pet Place? • All pets at Pet Stop to all pets at Your Zoo?**08 SOL**The ratio of boys to girls in Room B is 15 to 12. What is the ratio of girls to total students in Room B?**What is the ratio of Zizu’s miles run to Mark’s miles**run? 4 to 12 or 1 to 3**What is the ratio of Kaya’s miles run to Jim’s miles**run? 8 to 5**My Halloween Candy**What is the ratio of snickers to m&ms? What is the ratio of snickers to all the candy?**Ratio of shaded squares to total squares:**50 to 100 shaded 5 x 10 = 50 or 1 to 2 Ratio of shaded squares to unshaded squares: total 10 x 10 = 100 50 to 50 or 1 to 1**Ratio of shaded squares to total squares:**45:100 or 9:20 Ratio of shaded squares to unshaded squares: 45:55 or 9:11**Ratio of total squares to shaded squares:**100:32 or 25:8**07 SOL**According to the table, what is the ratio of the number of B’s Camelia earned to the number of A’s she earned?**Number &**Number Sense 6.1 The student will describe and compare data, using ratios, and will use appropriate notations, such as ab, a to b, and a:b. Math Is Fun Good explanation and several real life examples. http://www.mathsisfun.com/numbers/ratio.html**Number &**Number Sense 6.1 The student will describe and compare data, using ratios, and will use appropriate notations, such as ab, a to b, and a:b. Math Is Fun Good explanation and several real life examples. http://math.rice.edu/~lanius/proportions/index.html**Number &**Number Sense 6.1 The student will describe and compare data, using ratios, and will use appropriate notations, such as ab, a to b, and a:b. Arcademic Think quick and find the equivalent ratio. http://www.arcademicskillbuilders.com/games/ratio-stadium/ratio-stadium.html