Explore word problems about ratios and watch and listen to all the steps needed to solve.

Discover how percents and proportions help explain issues like climate change, composting, and zero waste in this video from KQED. In the accompanying classroom activity, students estimate the percentage of various types of trash that...

A clear explanation, with drawings and examples, of the golden ratio. The examples demonstrate the beauty of mathematics, such as how two Fibonacci numbers can approximate the golden ratio, and why the golden ratio can be called the...

The triathlon is a physically gruelling challenge. Can you work out which athlete burnt the most calories? This activity provides a real-life context for working with proportionality, speed, rates, and units of measurement and is aimed...

Practice filling out tables of equivalent ratios. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

Download and print these worksheets to sharpen your skills working with fractions. Worksheets focus on modeling fractions, ratios and proportions, comparing, ordering, simplifying, converting, and order of operations.

This site introduces students to the definition of golden ratio. It gives them a chance to estimate ratios and predict which figures are closest to the golden ratio. There is a link on this page that provides charts for students to...

In these KQED Lowdown infographics, explore how adult obesity rates in the United States, as measured by body mass index (BMI), have dramatically changed in the past half-century. A circular graph and a pictograph depict data by decade,...

Dr. Math has to go into the kitchen to solve this real-world problem. A student is looking for a solution to a ratio problem about baking a cake. You'll need to stir up your knowledge of ratios, fractions, decimals, proportions, and...

"Rated 'M' for middle school," Math TV invites you to tune in each week for videos of word problems being solved. Back episodes are available in subjects such as percentages, number sense, and fractions. Watch a problem worked out, then...

This WebMath site provides a general description of proportions. Content also includes a 'problem solver' which lists step-by-step instructions on how to obtain the correct answer.

Deterime the ratios of amounts to one another and then simplify.

A student is searching for a solution to a ratio question without using a diagram. Dr. Math helps to break it down both with and without a diagram. An understanding of fractions, multiplication, and basic algebra is necessary to get this...

A comprehensive lesson on algebraic thinking where students create and identify patterns using proportional reasoning. Research based, this lesson includes technology connections, items for discussion, and extension activities.

Test your knowledge of ratios by determining the equivalents and how to interpret the given ratio.

Using the USA TODAY Infograph, 'Wing tabs save fuel', ratios and proportions will be used to explore the concept of similarity between a drawing/model and the actual dimensions. The effects of dilation (size change) on an image and...

Demonstrate the ability to apply the use of decimals, fractions, ratios and proportions to situations based upon given information about planets in the solar system.

Learn how to use fractions to interpret food labels and make healthy eating choices.

Seventh graders use ratio cards to find equivalencies and form partnerships for the week. As a class, 7th graders discuss and decide on classroom norms. Give each student a ratio card. Instruct students to find a classmate whose card has...

The Saskatoon Board of Education provides teachers with this collection of grade six math performance stations. Although several of the stations have been designed as assessment tools for the Saskatchewan curriculum, teachers may also...

The Saskatoon Board of Education provides teachers with this collection of grade seven math performance stations. Although several of the stations have been designed as assessment tools for the Saskatchewan curriculum, teachers may also...

The Saskatoon Board of Education provides teachers with this collection of grade eight math performance stations. Although several of the stations have been designed as assessment tools for the Saskatchewan curriculum, teachers may also...

The Saskatoon Board of Education provides teachers with this collection of grade nine math performance stations. Although several of the stations have been designed as assessment tools for the Saskatchewan curriculum, teachers may also...

A complete CCSS Grade 7 Mathematics course that includes interactives in every lesson, plus videos, hands-on activities, and questions with immediate feedback. Every lesson also has specifically chosen 'Related Modalities' that teach the...