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## Solve problems involving ratios, rates and percents. SPI 0606.2.6

1. Percent
1. Calculate percent - Discover relationships between fractions, percents, and decimals
2. Chances Are - predict the likelihood of events using a circle graph with percentages as a model
3. Finding a percent of a quantity - five multiple choice questions
4. Fraction Bar Games - eight interactive fraction bar games
5. Fraction Bars [Math Playground] - Fraction bars will be drawn once the numerator and denominator are properly set. Turn numbers on or off.
6. Fractions, Decimals or Percent - two are given, you supply the third
7. Integer Bars - learning fractions and more with on-line manipulatives
8. Math at the Mall - practice percentages and finding the best deal while shopping at a virtual mall
9. Musical Fraction Bars: Making Melodies With Fractions - The Musical Fraction Bars activity connects your knowledge of fractions and length to musical pitch.  Simply choose your fractions and press play — your fractions will transform into a musical composition you can see and hear.
10. Penguin Waiter Percent Game - Funbrain site
11. Percent Problems - a one-player, or two-player game from Quia
12. Percentages and Proportions - five multiple choice questions
13. Percents and Ratios - an index of pages that teach percent and ratio skills covered in K8 math courses - Each page has an explanation, interactive practice and challenge games about percents and ratios. (from AAA math)
14. Percents and Wholes - five multiple choice questions
15. Percent with a Calculator - after the lesson there are problems to work (don't run your mouse over the colored blocks until you have an answer in mind)
16. Pie Chart - view pie charts (parameters: number of sectors, size of sector as a percent)
17. Practice Solving Percent Problems - more percent practice
18. Shopping at Troy's Toys - percent shopping
19. Solving Percent Problems Using a Pyramid Grid - an interactive lesson
20. Spy Guys Interactive - Percent - Lesson 4
21. Using percents - five multiple choice questions
22. Using the Proportion Method to Solve Percent Problems - practice problems at the end
23. What percentage has been shaded - Guess the percent of the shaded pie chart
24. What Percentage of your Class is Right or Left Handed? - a data collection and analysis class experiment
2. Ratio and Proportion
1. Algebra: Proportion Word Problems - explanation and examples [direct and inverse proportion explained]
2. All About Ratios - five multiple choice questions, select "get Score" to see how you did
3. All About Ratios - links to several lessons by Cynthia Lanius
4. All About Ratios: (Problem Solving) - A famous Texas chef has a secret recipe for her chili. When people ask her for it, she hands them a card with the complete recipe except for 1 detail. For the missing detail, she gives them a clue. Use ratios to discover the missing ingredient.
5. Cat and Mouse: Direct and inverse proportion - The problem is actually a great opportunity to teach direct variation and inverse variation.
6. Comparing Ratios and Rates - five multiple choice questions
7. Determine the number based on the ratio - instruction and review, practice, and a quiz and
8. Determining the Ratio - instruction and review, practice, and a quiz and
9. Figure This: Math Challenge for Families - proportional reasoning
10. Interpreting and Applying Proportions - five multiple choice questions
11. Learning ratios and proportions through scale drawings - a text lesson plan
12. Math for Morons Like Us - a ThinkQuest entry on ratio
13. Nutshell Math: Ratios and Proportion - video lesson with examples and sample problems
14. Percentages and Proportions - five multiple choice questions
15. Percents and Ratios - AAA math site with many interactive quizzes - instruction and review, practice, and a quiz and
16. Percents and Ratios - an index of pages that teach percent and ratio skills covered in K8 math courses - Each page has an explanation, interactive practice and challenge games about percents and ratios. - instruction and review, practice, and a quiz and
17. Percent with a Calculator - after the lesson there are problems to work (don't run your mouse over the colored blocks until you have an answer in mind)
18. Practice with Ratios - ten questions, each with answer and explanation available in pull down menus
19. Proportions and Ratios - good explanation of means and extremes from Free Math
20. Proportion Problems - [Skillwise factsheet] summary of some everyday practical problems involving proportion
21. Proportion Problems: Matching - [Skillwise worksheet] exercise in placing calculations and answers under the appropriate problems
22. Proportion Sorting 1 - [Skillwise worksheet] exercise in identifying proportion in sets of numbers
23. Proportion Sorting 2 - [Skillwise worksheet] exercise in identifying proportion in everyday contexts
24. Rags to Riches: Ratio and Proportion Quiz - quiz at Quia
25. Rate - Understand that rate compares two quantities of different kinds of units and learn how to express rates as unit rates. Work through the lesson, experiment with the interactive figure and then answer ten questions. [caution: do not submit until you have selected answers to all of the questions] and
26. Rates, Ratios, and Proportions - a two person quiz from Quia
27. Ratio/Proportion Problems from Ask Dr. Math - three pages of links to real-world problems
28. Ratio and Proportion - math review practice exercises
29. Ratio and Proportion - A proportion is a name we give to a statement that two ratios are equal. (This is a 3 step lesson followed by a workout.)
30. Ratio and Proportion - explanation and examples
31. Ratio and Proportion - introduction, in depth explanation, examples and a workout of ten problems
32. Ratio and Proportion - one-minute video on ratio and proportion
33. Ratio and Proportion - Level 1 Quiz
34. Ratio and Proportion - Entry 3 Quiz
35. Ratio and Proportion Key Words - [Skillwise factsheet] summary of the main words and terms used in ratio and proportion
36. Ratio Exercises:
37. Ratio Proportion Calculator - Enter the known and unknown values from your proportion problem. In classic algebraic format, place an x in the box where the value is unknown. Click on Calculate to see the answer.
38. Ratios - a six page module from Purple Math
39. Ratios and Proportions - explanation with four sample problems
40. Ratios and Proportions - an interactive lesson in a slide show format
41. Ratio and Proportion - This 46-slide show makes the distinction among ratio, proportion and fraction and also gives students practice at scaling. This slide show could be used as a whole class review with projection or an interactive whiteboard. Student practice assignments are built in.
42. Reduce Ratios to Lowest Terms - interactive quiz - instruction and review, practice, and a quiz and
43. Review of Proportion - examples and practice problems
44. Review of Ratios - examples and practice problems
45. Spy Guys Interactive - Ratio - Lesson 3
46. Teaching Ratios and Proportions - suggestion for teachers and parents
47. Using Proportions - five multiple choice questions {refresh to get new problems]

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