Illustrative Math Alignment: Grade 7 Unit 4

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.

This video is part of a series of videos that cover the topic of percents. This includes the definition of a percent, percent operations, and applications of percents. Each video includes real-world examples of using percents to solve specific problems. 

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.

This video is part of a series of videos that cover the topic of percents. This includes the definition of a percent, percent operations, and applications of percents. Each video includes real-world examples of using percents to solve specific problems. 

Topic

Ratios, Proportions, and Percents

Definition

Percent increase measures the growth in value expressed as a percentage of the original value.

Description

Percent increase is used to quantify the growth in value over time, expressed as a percentage of the original value. It is commonly used in finance, economics, and everyday scenarios such as salary increases and population growth.

For example, if the price of a stock rises from \$50 to \$75, the percent increase is calculated as 

(75 − 50)/50 × 100 = 50%

In this Algebra Application, students study the life cycles of 13- and 17-year cicadas, as well as the populations of bird predators. Students develop a mathematical model using spreadsheets and investigate why the prime number life cycles help the cicadas. The math topics covered include: Mathematical modeling, Data gathering and analysis, Percent increase and decrease, Prime numbers and composites. This real world application of math concepts will engage your students.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math clip art images that explain different aspects of ratios, proportions, and percents.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on money.

This is part of a collection of math examples that focus on percents.

This is part of a collection of math examples that focus on percents.

This is part of a collection of math examples that focus on percents.