Lessons

In this lesson you will learn to define percents by using ratios.

In this lesson you will learn to visualize percents by using 10×10 grids.

In this lesson you will learn to compare ratios by using ratio tables and percents.

In this lesson you will learn to calculate the part when you know the percent and the total by using a double number line.

In this lesson you will learn to calculate the total when you know the percent and the part by using a double number line.

In this lesson you will learn to solve percent problems by using a ratio table.
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Isolation Drills
Converting between fractions and percents
Interactive Practice
 Algebra: Solving Proportions – A quiz from Quia using the Rags to Riches format
 All About Ratios – Fivequestion multiplechoice quiz
 All About Ratios – Links to several lessons by Cynthia Lanius
 All About Ratios – Match the given ratio to another problem
 All About Ratios – Match the given ratio to a problem about fish
 All About Ratios – Match the given ratio to a problem about cameras
 All About Ratios – Match the given ratio to a problem about stars
 All About Ratios – Match the given ratio to a problem about spiders
 All About Ratios – Match the given ratio to a problem about atoms
 All About Ratios – Match the given ratio to a problem about dolls and cameras
 All About Ratios – A famous Texas chef has a secret recipe for her chili. Use ratios to discover the missing ingredient of her recipe
 Calculate percent – Discover relationships between fractions, percents, and decimals
 Cat and Mouse Proportion – The problem is actually a brain teaser and a great opportunity to teach direct variation and inverse variation
 Chances Are – Predict the likelihood of events using a circle graph with percentages as a model
 Comparing Ratios and Rates – Take a five questions multiplechoice quiz about ratios and rates
 Determine a Number Based on the Ratio – Click on the Start button and then determine the ratio of the given numbers
 Determine the Ratio – Click on the Start button and then determine the number that fits the given ratio
 Dirt Bike Proportions – Select the correct proportion; the quicker you answer the faster your bike will go
 Dividing fractions – Fraction Bar This is a very versatile tool that can be used to illustrate a variety of number operations.
 Equivalent Fractions – Determine which gems are equivalent to the ones wanted by each store and then ship the order (check to see if you were right)
 Finding a percent of a quantity – Five multiple choice questions
 Hand Squeeze – Pass a “hand squeeze” around a circle and measure the amount of time that it takes for the hand squeeze to complete the circle. This is a data collection and analysis class experiment
 Interpreting and Applying Proportions – Multiple choice quiz with realworld problems
 Inverse Proportion Problems – From Annenberg’s Learning Math series
 Learning ratios and proportions through scale drawings – A text lesson plan
 Math at the Mall – Practice percentages and finding the best deal while shopping at a virtual mall
 Math Challenge – Use proportional reasoning to answer this problem
 Penguin Waiter Percent Game – FunBrain site
 Percent – Spy Guys Interactive Lesson 4
 Percent Problems – A oneplayer, or twoplayer game from Quia
 Percent with a Calculator – Explanation, examples and a link to a quiz to check understanding
 Percentage – Index of lessons available at AAA Math
 Percentages and Proportions – Short multiple choice quiz
 Percentages and Ratios – Index of lessons available at AAA Math
 Percents and Wholes – Five multiple choice questions
 Pie Chart – View pie charts (parameters: number of sectors, size of sector as a percent)
 Practice forming Ratios – After you have tried several of the practice problems, scroll down for a quiz
 Practice Solving Percent Problems – Fifteen questions, answers available from a drop down menu
 Practice with Ratios – Ten question quiz, answers and explanations are available from drop down boxes from the Internet archive
 Practice with Ratios – Eleven multiple choice questions about ratios
 Proportion practice test – Thirteen multiple choice questions, each question is on a separate page
 Proportion Word Problems – Explanation and examples from an algebra page; direct and inverse proportion are explained
 Proportions – Threestep lesson followed by a quiz
 Proportions and Ratios – Includes a good explanation of means and extremes
 Rates, Ratios and Proportions – Quiz in the format of a two person game
 Ratio – Which choice gives more pizza per student
 Ratio – Spy Guys interactive lesson
 Ratio and Proportion – One minute video about ratio and proportion
 Ratio and Proportion – Level 1 quiz
 Ratio and Proportion – Entry level quiz
 Ratio and Proportion – This explanation includes a discussion about rates
 Ratio and Proportion – Key words to keep in mind as you work with ratio and proportion
 Ratio and Proportion – Select how many questions you want to answer from a dropdown menu
 Ratio and Proportion Problems – An index of problems and their explanation from Ask Dr. Math
 Ratio and Proportions – Short video lesson explaining ratios and proportions
 Ratio Blaster – A game for finding equal ratios
 Ratio Proportion Calculator – This calculator teaches the basics of algebra in setting and determining unknowns
 Ratio Stadium – A racing game practicing the skill of making ratios
 Ratios – Seven pages filled with examples at Purple Math
 Ratios – This three page explanation followed by a quiz includes explanation about equal ratios
 Ratios and Proportions – Quiz in the rags to riches game format
 Ratios and Proportions – A thirteen slide interactive show to practice making ratios and expressing proportions
 Real World Problems – Three practice problems with a link to find the solutions
 Review of Proportions – How to set up various types of proportions
 Review of Ratios – How to set up ratios and how to compare them
 Shade – Shade in the correct amount of units to equal the fraction by clicking on the unit
 Sharing Prize Money – This worksheet uses UK money, but ratios are set up the same way
 Sharing Prize Money 2 – This worksheet uses UK money with a profit and loss scenario
 Shopping at Troy’s Toys – Percent shopping
 Simplifying Ratios – How to make ratios smaller so that they are easier to understand
 Solve it! – Videos provide problem solving practice for students. Each set contains five multistep word problems with step by step video solutions. Concepts include basic operations, algebraic reasoning, money, fractions, percent, perimeter, area, proportional reasoning, and measurement.
 Solving Percent Problems Using a Pyramid Grid – An interactive lesson
 Teaching Ratios and Proportions – Suggestions for parents to use to help students learn this topic
 Understanding Experimental Probability – Experiment with experimental probability using a fixed size section spinner, a variable section spinner, 2 regular 6sided number cubes or design your own number cubes.
 Understanding Percent – For each of the 9 problems on this page, fill in the missing value into the form, then click Enter. Your answer will be a fraction, a decimal or a percent, depending on the problem.
 Understanding Ratio – A worksheet to print so students can practice working with ratios
 Using percents – Five multiple choice questions
 Using Proportions – 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
 Writing Ratios as Fractions – Worksheet for expressing ratios as fractions
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