Algebra 1 2-10 Complete Lesson: Change Expressed as a Percent

5 (1 rating)

by Matthew Richardson

| 26 QuestionsNote from the author:

A complete formative lesson with embedded slideshow, mini lecture screencasts, checks for understanding, practice items, mixed review, and reflection. I create these assignments to supplement each lesson of Pearson's Common Core Edition Algebra 1, Algebra 2, and Geometry courses. See also mathquest.net and twitter.com/mathquestEDU.

1

2

1

10 pts

Solve It! Two stores advertised sales on their websites, as shown. Before the sale, each sweater cost $35. Which store offers the better deal?

The store with the ad on the left.

The store with the ad on the right.

2

10 pts

Explain how you know.

4

4

10 pts

Problem 1 Got It?

A

B

C

D

5

10 pts

Problem 2 Got It? In one year, the toll for passenger cars to use a tunnel rose from $3 to $3.50. What is the percent increase?

about 46%

about 14%

about 17%

about 54%

6

6

10 pts

Problem 3 Got It?

A

B

C

D

7

7

10 pts

Problem 4 Got It?

A

B

C

D

8

8

10 pts

A

B

C

D

9

9

10 pts

A

B

C

D

10

10

10 pts

A

B

C

D

11

11

10 pts

A

B

C

D

12

5 pts

Vocabulary: Determine whether the situation involves a percent increase or a percent decrease.

A hat that originally costs $12 sold for $9.50.

Percent decrease

Percent increase

13

5 pts

Vocabulary: Determine whether the situation involves a percent increase or a percent decrease.

You buy a DVD for $10 and sell it for $8.

Percent increase

Percent decrease

14

5 pts

Vocabulary: Determine whether the situation involves a percent increase or a percent decrease.

A store buys glasses wholesale for $2 per class. The store sells them for $4.50

Percent increase

Percent decrease

15

10 pts

Reasoning: What is the greatest possible error of a measurement taken to the nearest tenth of a meter? Hint: Consider how many centimeters are in one tenth of a meter.

10 cm

5 cm

0.1 cm

1 cm

16

10 pts

Writing: How is calculating percent increase different from calculating percent decrease?

17

10 pts

Review Lesson 2-9: What percent of 12 is 9?

Enter your response in the following format: 4%

18

10 pts

Review Lesson 2-9: What is 35% of 185?

Enter only a number. Use decimal form, if necessary.

19

10 pts

Review Lesson 1-3: Graph the numbers on the same number line.

20

10 pts

Review Lesson 1-3: Drag the numbers to sort them from least to greatest.

The top should represent the least, the bottom the greatest.

- -3
- 1/2
- 2
- -2.8

21

10 pts

Vocabulary Review: Match each coin with the percent of a dollar it represents.

- penny
- quarter
- nickel
- dime
- 50-cent piece

- 5%
- 10%
- 1%
- 50%
- 25%

22

5 pts

Describe the change as an increase or decrease. 72 to 84

Increase

Decrease

23

5 pts

Describe the change as an increase or decrease. 25 to 16

Decrease

Increase

24

5 pts

Describe the change as an increase or decrease. $.99 to $1.02

Decrease

Increase

25

100 pts

Notes: Take a clear picture or screenshot of your Cornell notes for this lesson. Upload it to the canvas. Zoom and pan as needed.

For a refresher on the Cornell note-taking system, click here.

26

10 pts

Reflection: Math Success

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