lesson 4 homework practice percent of change

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Percent of Change Lesson Plan

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Percent of Change Guided Notes with Doodles | Percent Proportions Worksheets

Ever wondered how to teach percent increase and decrease in an engaging way to your seventh grade students?

In this lesson plan, students will learn about percent of change and its real-life applications. Through artistic, interactive guided notes, check for understanding, a doodle & color by number activity, and a maze worksheet, students will gain a comprehensive understanding of calculating percent change using the percent change formula as well as using proportions.

The lesson culminates with a real-life example that explores how percent of change can be used to solve word problems in practical situations. Students will read and write about real-life uses of percent change, further solidifying their understanding of the concept.

• Standard : CCSS 7.RP.A.3
• Topic : Percents
• Grade : 7th Grade
• Type : Lesson Plans

Learning Objectives

After this lesson, students will be able to:

Calculate percent increase and decrease using the percent change formula

Solve for percent change using proportions

Apply the concept of percent change to real-life situations and word problems

Prerequisites

Before this lesson, students should be familiar with:

Basic understanding of fractions, decimals, and percents

Knowledge of basic operations of integers (addition, subtraction, multiplication, and division)

Understanding of how to substitute to solve an equation

Colored pencils or markers

Guided notes

Key Vocabulary

Percent increase

Percent decrease

Percent change

Proportions

Introduction

As a hook, ask students why understanding percent increase and decrease is important in real life situations. Refer to the last page of the guided notes for a detailed example as well as the FAQs below for ideas.

Use the first page of the guided notes to introduce the concept of percent change and how to calculate it using the percent change formula. Walk through the key points of the topic, including the steps to calculate percent change using the formula and the meaning of positive and negative percent change. Also introduce how you can set up proportions instead of using the percent change formula.

Based on student responses, reteach any concepts that students need extra help with. If your class has a wide range of proficiency levels, you can pull out students for reteaching, and have more advanced students begin work on the practice exercises.

Have students practice calculating percent change using the Percent Change Formula and Percent Proportions using the practice worksheet (page 2 of guided notes) provided in the resource. Walk around the classroom to answer any student questions and provide support as needed.

Fast finishers can dive into the maze activity (page 3) or color by number activity (page 4) included in the resource. You can also assign it as homework for the remainder of the class.

Real-Life Application

Bring the class back together, and introduce the concept of real-life applications of percent change. Explain to the students that percent change is a mathematical concept that is used in various real-world scenarios.

One example of a real-life application of percent change is in the field of finance and investments. Explain that when people invest their money in stocks or other financial instruments, the value of their investments can increase or decrease over time. This change in value can be measured using percent change. For example, if someone invests $1,000 and their investment grows to $1,200, the percent change would be (1200 - 1000) / 1000 = 0.2 or 20%. This means that their investment has grown by 20%.

Another example of a real-life application is in the context of sales and discounts. Explain that when stores offer discounts on their products, they often advertise the percent decrease in price. This helps consumers understand how much they can save on a purchase. For example, if a pair of shoes is originally priced at $100 and is on sale for 20% off, the new price would be $100 - (20% * $100) = $80. This means that the price of the shoes has decreased by 20%.

Ask for student volunteers to share any other real-life scenarios where percent change might be used. Encourage discussion and provide feedback on their ideas. Refer to the FAQ section in the teaching resource for more ideas and examples on how to teach the real-life application of percent change.

Additional Self-Checking Digital Practice

If you’re looking for digital practice for percent of change, try my Pixel Art activities in Google Sheets. Every answer is automatically checked, and correct answers unlock parts of a mystery picture. It’s incredibly fun, and a powerful tool for differentiation.

Here are 2 activities to explore:

Percent of Change Digital Pixel Art | Percent Increase & Decrease Google Sheets

Percents & Money Pixel Art Unit BUNDLE

Additional Print Practice

A fun, no-prep way to practice percent of change is Doodle Math — they’re a fresh take on color by number or color by code. It includes multiple levels of practice, perfect for a review day or sub plan.

Here is an activity to try:

Percent Change | Doodle Math: Twist on Color by Number | Increase Decrease

Real-Life Math Project

A fun way to wrap this lesson with your students is with one of my real-life math projects. They enable students to see the application of math in an engaging activity where they play the role of an airline intern, using percentage to solve real world problems.

[Free!] Airline Intern: Percentage Application

What is percent of change? Open

Percent of change is a way to express the amount of increase or decrease in a quantity as a percentage of the original amount.

How do you calculate percent of change? Open

To calculate percent of change, use the following formula:

Subtract the original value from the new value.

Divide the difference by the original value.

Multiply the result by 100 to get the percentage.

What are percent proportions? Open

Percent proportions are ratios that compare the part to the whole, expressed as a percentage.

What is the difference between percent increase and percent decrease? Open

Percent increase refers to the amount that a quantity has grown or expanded in comparison to its original value, expressed as a percentage. Percent decrease, on the other hand, refers to the amount that a quantity has decreased or reduced in comparison to its original value, also expressed as a percentage.

How can I determine whether there is a percent increase or percent decrease? Open

To determine whether there is a percent increase or percent decrease, compare the new value to the original value:

If the new value is greater than the original value, there is a percent increase.

If the new value is less than the original value, there is a percent decrease.

How can I apply percent of change in real-life situations? Open

Percent of change can be applied in various real-life situations, such as:

Calculating sales discounts or price increases

Analyzing population growth or decline

Determining inflation rates

Examining changes in test scores or grades over time

Assessing changes in stock prices or investments over time

Want more ideas and freebies?

Get my free resource library with digital & print activities—plus tips over email.

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Percent of Change Worksheets

• Pre-Algebra >
• Percent >

Our printable percent of change worksheets, which rattle through percents that increase or decrease, help novice learners become masters of percentage changes! Students will train themselves to calculate a percent change using the correct formula and state if it is a percent increase or percent decrease. They also find the new values, given the original value and the percentage of change. Our free percent increase and percent decrease worksheets are available in both customary and metric units.

These pdf worksheets are most recommended for students in the 6th grade and 7th grade.

Finding Percent of Change | Worksheet #1

Percent of Change = (new value - old value) / old value × 100. If the result is positive, it is a percent increase; if the result is negative, it is a percent decrease. This pdf has more practice in calculating the percent of change.

Finding Percent of Change | Worksheet #2

Finding percent of change is easy! Plug in the given values in the correct formula and perform the operations as usual. The six word-format exercises in this printable tool help build your confidence and perfect your technique.

Finding the New Amount | Worksheet #1

How quickly can the grade 6 and grade 7 students find the new amount after an increase of 23% in 437 units? This free worksheet has some great practice! Don't forget to validate the answers using the included answer key!

Finding the New Amount | Worksheet #2

First determine the amount by which the original amount has changed, and then add/subtract it to/from the original amount. That's how easy it is to find the new amount! The more new amounts you find, the sharper your skills grow!

Percent of Change Word Problems Worksheets

An enthralling bunch of realistic word problems await the aspiring learners in this must-have pdf worksheet. Direct the students to read, understand, and solve the word problems involving percentage change.

Related Printable Worksheets

▶ Percent of a Number

▶ Percent Error

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Lesson 4 Homework Practice Percent of Change

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Class 7 (Old)

Course: class 7 (old)   >   unit 7.

• Percent word problem: penguins
• Percent word problems
• Percent word problem: magic club

Percentage change word problems

• Your answer should be
• an integer, like 6 ‍  
• a simplified proper fraction, like 3 / 5 ‍  
• a simplified improper fraction, like 7 / 4 ‍  
• a mixed number, like 1   3 / 4 ‍  
• an exact decimal, like 0.75 ‍  
• a multiple of pi, like 12   pi ‍   or 2 / 3   pi ‍  

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Seventh grade math - Percent of change

Seventh grade math – percent of change.

To calculate percentage, work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. If your answer is a negative number then this is a percentage decrease. Learn to calculate percentage, percentage formula using the resources on this page.

The apps, sample questions, videos and worksheets listed below will help you learn Percent of change.

Sample questions related to percent of change, percent of change worksheets, educational apps related to percent of change.

Math ELA Grade 7 – Common Core

7th Grade Math Common Core

Complete Mathematics

Educational videos related to Percent of change

Grade 7 Math – Applying Ratios and Percents 1

Grade 7 Math – Applying Ratios and Percents 2

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Related Topics

How do you calculate percentages.

work out the difference (increase) between the two numbers you are comparing. Increase = New Number – Original Number. Then: divide the increase by the original number and multiply the answer by 100. % increase = Increase ÷ Original Number × 100.

How do you solve percent of change?

To calculate the percentage increase: First: work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. If your answer is a negative number then this is a percentage decrease

How do you calculate a percentage change from one number to another?

To calculate the percentage increase: First: work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. If your answer is a negative number then this is a percentage decrease.

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Lesson 5: Percent of Change

January 26, 2021 - lesson recording.

Go to Lesson 6

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• Grade 7 McGraw Hill Glencoe - Answer Keys

Explanation:

24 is what percent of 120?

3 is 12% of what number?

A local bakery sold 60 loaves of bread in one day. If 65% of these were sold in the afternoon, how many loaves were sold in the afternoon?

Building on the Essential Question When might it be easier to use the percent equation rather than the percent proportion?

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Unit 4, Chapter 8, Lesson 4: Percent of Change

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