7th Grade Math

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Percents

PART A BCDE

Multi-Part

Lesson 1

GLE 0706.2.4

Use ratios, rates and

percents to solve single-

and multi-step problems

in various contexts. Also

addresses GLE 0706.1.8.

318 Percent

Percent Diagrams

MUSIC There are 500 seventh-grade

students at Heritage Middle School.

Sixty percent of them play a musical

instrument. How many seventh-grade

students play a musical instrument?

What do you need to find? how many seventh-grade students

play a musical instrument

Make a bar diagram that represents 100%. Make

another bar of equal length to represent 500 students.

percent

students 500

100%

Divide each bar into ten equal parts.

10% 10% 10% 10% 10% 10% 10% 10% 10% 10%

50 50 50 50 50 50 50 50 50 50

percent

students 500

100%

Shade 60% on the percent bar and an equal amount

on the student bar.

60%

300

10% 10% 10% 10% 10% 10% 10% 10% 10% 10%

50 50 50 50 50 50 50 50 50 50

percent

students 500

100%

Since 60% corresponds to the number 300, there are 300

seventh-grade students who play a musical instrument.

Main Idea

Use percent diagrams

to solve problems.

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