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

## Links verified on 7/8/2014

Percent

- Calculate percent - Discover relationships between fractions, percents, and decimals
- Finding a percent of a quantity - five multiple choice questions
- Fraction Bar Games - eight interactive fraction bar games
- Fraction Bars [Math Playground] - Fraction bars will be drawn once the numerator and denominator are properly set. Turn numbers on or off.
- Fractions, Decimals or Percent - two are given, you supply the third
- Math at the Mall - practice percentages and finding the best deal while shopping at a virtual mall
- 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.
- Penguin Waiter Percent Game - Funbrain site
- Percent Problems - a one-player, or two-player game from Quia
- Percentages and Proportions - five multiple choice questions
- 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)
- Percents and Wholes - five multiple choice questions
- 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)
- Pie Chart - view pie charts (parameters: number of sectors, size of sector as a percent)
- Practice Solving Percent Problems - more percent practice
- Shopping at Troy's Toys - percent shopping
- Solving Percent Problems Using a Pyramid Grid - an interactive lesson
- Using percents - five multiple choice questions
- Using the Proportion Method to Solve Percent Problems - practice problems at the end
- What percentage has been shaded - Guess the percent of the shaded pie chart
- What Percentage of your Class is Right or Left Handed? - a data collection and analysis class experiment
Ratio and Proportion

- Algebra: Proportion Word Problems - explanation and examples [direct and inverse proportion explained]
- All About Ratios - five multiple choice questions, select "
get Score" to see how you did- All About Ratios - links to several lessons by Cynthia Lanius
- 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.
- Cat and Mouse: Direct and inverse proportion - The problem is actually a great opportunity to teach direct variation and inverse variation.
- Comparing Ratios and Rates - five multiple choice questions
- Determine the number based on the ratio - instruction and review, practice, and a quiz
and- Determining the Ratio - instruction and review, practice, and a quiz
and- Figure This: Math Challenge for Families - proportional reasoning
- Interpreting and Applying Proportions - five multiple choice questions
- Learning ratios and proportions through scale drawings - a text lesson plan
- Nutshell Math: Ratios and Proportion - video lesson with examples and sample problems
- Percentages and Proportions - five multiple choice questions
- Percents and Ratios - AAA math site with many interactive quizzes - instruction and review, practice, and a quiz
and- 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- 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)- Practice with Ratios - ten questions, each with answer and explanation available in pull down menus
- Proportions and Ratios - good explanation of means and extremes from Free Math
- Proportion Problems - [Skillwise factsheet] summary of some everyday practical problems involving proportion
- Proportion Problems: Matching - [Skillwise worksheet] exercise in placing calculations and answers under the appropriate problems
- Proportion Sorting 1 - [Skillwise worksheet] exercise in identifying proportion in sets of numbers
- Proportion Sorting 2 - [Skillwise worksheet] exercise in identifying proportion in everyday contexts
- Rags to Riches: Ratio and Proportion Quiz - quiz at Quia
- Rates, Ratios, and Proportions - a two person quiz from Quia
- Ratio/Proportion Problems from Ask Dr. Math - three pages of links to real-world problems
- Ratio and Proportion - math review practice exercises
- 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.)
- Ratio and Proportion - introduction, in depth explanation, examples and a workout of ten problems
- Ratio and Proportion - one-minute video on ratio and proportion
- Ratio and Proportion - Level 1 Quiz
- Ratio and Proportion - Entry 3 Quiz
- Ratio and Proportion Key Words - [Skillwise factsheet] summary of the main words and terms used in ratio and proportion
- 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?
- 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.- Ratios - a six page module from Purple Math
- Ratios and Proportions - explanation with four sample problems
- Ratios and Proportions - an interactive lesson in a slide show format
- 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.
- Reduce Ratios to Lowest Terms - interactive quiz - instruction and review, practice, and a quiz
and- Review of Proportion - examples and practice problems
- Review of Ratios - examples and practice problems
- Teaching Ratios and Proportions - suggestion for teachers and parents
- Using Proportions - five multiple choice questions {refresh to get new problems]

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