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## Use proportional reasoning to solve mixture/concentration problems. SPI 0706.1.1

1. Algebra: Solving Proportions - a quiz from Quia using the Rags to Riches format 2. All About Ratios - five-question multiple-choice quiz 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. Comparing Ratios and Rates - five-question multiple-choice quiz 6. Determine the number based on the ratio - instruction and review, practice, and a quiz and 7. Determining the Ratio - instruction and review, practice, and a quiz and 8. Figure This: Math Challenge for Families - proportional reasoning
9. Interpreting and Applying Proportions - five-question multiple-choice quiz 10. Learning ratios and proportions through scale drawings - a text lesson plan 11. Mixture Word Problems - examples and instruction on solving mixture word problems
12. Mixture Word Problems: Sample Problems - six problems with their grids (but not solutions).
13. Nutshell Math: Ratios and Proportion - video lesson with examples and sample problems 14. Percentages and Proportions - five-question multiple-choice quiz 15. 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) - instruction and review, practice, and a quiz and 16. Percent with a Calculator - after the lesson there are problems to work 17. Practice with Ratios - ten question quiz, answers and explanations are available from drop down boxes [This expired page is brought to you by the Internet archive, the Wayback Machine.]
18. Proportion Practice Test - thirteen multiple choice questions, each question is on a separate page [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.] 19. Proportions and Ratios - good explanation of means and extremes from Free Math
20. Rags to Riches: Ratio and Proportion Quiz - quiz at Quia 21. Rates, Ratios, and Proportions - a two person quiz from Quia 22. Ratio/Proportion Problems from Ask Dr. Math - three pages of links to real-world problems
23. Ratio and Proportion - math review practice exercises 24. 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.)
25. Ratio and Proportion - explanation and examples [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
26. Ratio and Proportion - introduction, in depth explanation, examples and a workout of ten problems 27. Ratio and Proportion Quiz - play this game to practice writing ratios 28. Ratio Exercises: Dolls : Camera] | Same ratio -- Fish : Atom | Different ratio -- Spider : Lizard | Different ratio -- Dots : Stars | 2 Dolls for every 1 Camera | 3 Atoms for every 2 Fish | [How Many Spiders do You Have? | Which Way Gives More Pizza? 29. 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. Then select Calculate and click on it. 30. Ratios - a six page module from Purple Math
31. Ratios and Proportions - an interactive lesson in a slide show format 32. Ratios and Proportion Review - a 12 slide PowerPoint show [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]
33. Revising Ratio and Proportion - [46 slides] this show provides lots of practice for students and could be used in a whole class overview, or with pairs of students at the computer
34. Review of Proportion - examples and practice problems
35. Review of Ratios - examples and practice problems
36. Solving Mixture Problems - suggestions on using the Bucket Method from the Jefferson Davis Learning Center [This expired link is available through the Wayback Machine Internet Archive. If the page doesn't load quickly click on Impatient? at the bottom right of the page.]  37. Solving Mixture Word Problems - recommendations from Online Math Learning; for example, using a table to organize your information for mixture problems.
38. Spy Guys Interactive - Ratio - Lesson 3 39. Teaching Ratios and Proportions - suggestion for teachers and parents
40. Using Proportions - five-question multiple-choice quiz  Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles. 