In this real-world application of ratios, students will learn what a ratio is, including ratios with three terms. They will see different ways of writing ratios, including fractions in simplest form. 

a:b     $\frac{a}{b}$     a to b

Two short videos introduce the concept of ratios and each video includes real-world examples of ratios. Then several formative assessments are used to test for understanding.  

Students then look at the application of ratios to the mixing of concrete at a construction site, starting with a video then followed by an assessment.

This lesson can be assigned to individual students or teams of students. The lesson can be completed in about 20 minutes. 

Video Tutorial: Applications of Percent -- Grade. In this video we investigate the concept of the grade of a road. This is an application of percents, where the slope of a road or a ski slope is written in percent form. We interpret this percent measurement as a slope measurement. 

A Video Transcript is available for this tutorial at this Link

Note: The download is Media4Math's guide to closed captioned videos.

Other Closed Captioned Videos

To see the complete collection of Closed Captioned Videos, click on this Link

Video Tutorial: Percents: Calculating Commissions and Tips. In this video we look at using percent formulas to calculate sales commissions and tips. Various real-world scenarios are investigated for calculating these percent-based amounts. 

A Video Transcript is available for this tutorial at this Link

Note: The download is Media4Math's guide to closed captioned videos.

Other Closed Captioned Videos

To see the complete collection of Closed Captioned Videos, click on this Link

Video Tutorial: Percents: Calculating Tax. In this video we look at using tax rates to calculate tax owed. The tax rates are written as percents and converted to decimals to calculate the tax. 

A Video Transcript is available for this tutorial at this Link

Note: The download is Media4Math's guide to closed captioned videos.

Other Closed Captioned Videos

To see the complete collection of Closed Captioned Videos, click on this Link

Video Tutorial: Percents: Multiple Percents. In this video, we investigate calculating the percent of a percent. Multiple calculations of a percent are investigated relative to a combined percent calculation. 

A Video Transcript is available for this tutorial at this Link

Note: The download is Media4Math's guide to closed captioned videos.

Other Closed Captioned Videos

To see the complete collection of Closed Captioned Videos, click on this Link

Video Tutorial: Percents: Percent Decrease. In this video, we look at the concept of percent decrease. The formula for calculating percent decrease is shown and used in the context of solving real-world problems. 

A Video Transcript is available for this tutorial at this Link

Note: The download is Media4Math's guide to closed captioned videos.

Other Closed Captioned Videos

To see the complete collection of Closed Captioned Videos, click on this Link

Video Tutorial: Percents: Percent Increase. In this video, we look at the concept of percent increase. The formula for calculating percent increase is shown and used in the context of solving real-world problems. 

A Video Transcript is available for this tutorial at this Link

Note: The download is Media4Math's guide to closed captioned videos.

Other Closed Captioned Videos

To see the complete collection of Closed Captioned Videos, click on this Link

Video Tutorial: Percents: Percents and Multiples of Numbers. In this video, we explore the difference between percent growth and the multiple of a number. Several real-world examples are used to explore these differences. 

A Video Transcript is available for this tutorial at this Link

Note: The download is Media4Math's guide to closed captioned videos.

Other Closed Captioned Videos

To see the complete collection of Closed Captioned Videos, click on this Link

Video Tutorial: Percents: Probabilities and Percents. In this video, percent calculations are used to explore probabilities of events. From a percent-based probability predictions are made for given outcomes. 

A Video Transcript is available for this tutorial at this Link

Note: The download is Media4Math's guide to closed captioned videos.

Other Closed Captioned Videos

To see the complete collection of Closed Captioned Videos, click on this Link

Video Tutorial: Percents: Simple Interest. In this video, we look at simple interest in the context of using percent to make calculations. A formula for calculating simple interest is shown and used to solve several real-world problems. 

A Video Transcript is available for this tutorial at this Link

Note: The download is Media4Math's guide to closed captioned videos.

Other Closed Captioned Videos

To see the complete collection of Closed Captioned Videos, click on this Link

In this video, we explore the application of ratio concepts to the pitch of a roof and the slope of a ramp. Several real-world examples are explored. 

A Video Transcript is available for this tutorial at this Link

Note: The download is Media4Math's guide to closed captioned videos.

Other Closed Captioned Videos

To see the complete collection of Closed Captioned Videos, click on this Link

In this Slide Show, do a hands-on geometry activity to measure π. Note: The download is a PPT file.

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1-10. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1-20. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1 to 50. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1-10. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1-20. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1 to 50. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1-10. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1-20. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1 to 50. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1-10. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1-20. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1 to 50. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2

This quiz covers the topic of solving proportions of the form a / b = c / d for a. For this quiz, the values of b, c, and d are in the range 1-10. The interactive version is taken online.

Note: The download is the PDF version of the quiz (with answer key).

Related Resources

To see the complete collection of Quizzes on this topic, click on this link: https://bit.ly/3dI9UB2