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Algebra 1 2-8 Complete Lesson: Proportions and Similar Figures

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Last updated about 4 years ago
28 questions
Note from the author:
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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.
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Question 1
1.

Solve It! A sailboat and an accurate model of the boat are shown. How many feet long is the model sailboat? Enter only a number.

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Question 3
3.

Vocabulary: Define similar figures your own words.

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Question 5
5.

Problem 2 Got It? Create a diagram on the canvas to represent the scenario. Remember that you can insert pictures of objects -- like a man, a flagpole, a shadow, etc. -- instead of drawing them all. Be sure to label all important information.

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Question 10
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Question 18
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Question 19
19.

Review Lesson 2-7: Solve the proportion.
Enter only a number. Use decimal form, if necessary.

Question 20
20.

Review Lesson 2-7: Solve the proportion.
Enter only a number. Use decimal form, if necessary.

Question 21
21.

Review Lesson 2-7: Solve the proportion.
Enter only a number. Use decimal form, if necessary.

Question 22
22.

Review Lesson 1-2: Simplify the expression.
Enter only a number.

Question 23
23.

Question 24
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Review Lesson 1-2: Simplify the expression.
Enter only a number. Use a 0 as a place-holder in the ones place, if necessary. Example: -0.57

Question 25
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Question 26
26.

Question 27
27.

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.

Question 28
28.

Reflection: Math Success

Question 2
2.

Explain your reasoning.

Question 4
4.

Question 6
6.

Question 7
7.

Problem 4 Got It? A scale model of a building is 6 in. tall. The scale of the model is 1 in. : 50 ft. How tall is the building?
8.33 ft
300 ft
100 ft
3600 ft
Question 11
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Question 12
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Question 13
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Question 15
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Question 16
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Question 17
17.
Reasoning: The scale of a map is 1 in. : 100 mi. Is the actual distance between two towns 100 times the map distance between the two towns?
yes
no
not enough information to tell
Review Lesson 1-2: Simplify the expression.
Enter only a number.
-4
4
-1.5
0.4
Vocabulary Review: Categorize each pair of ratios.
Form a proportion
DO NOT form a proportion
Use Your Vocabulary: Categorize each pair of figures based on whether or not they are similar figures..
Similar figures
NOT similar figures
Problem 1 Got It?
A
B
C
D
Problem 2 Got It? A man who is 6 ft tall is standing next to a flagpole. The shadow of the man is 3.5 ft and the shadow of the flagpole is 17.5 ft. What is the height of the flagpole?
A
B
C
D
Problem 3 Got It? The distance from Jacksonville to Gainsville on the map is about 0.6 in. What is the actual distance from Jacksonville to Gainsville?
About 52 miles
About 66 miles
About 34 miles
About 27 miles
A
B
C
D
A
B
C
D
A
B
C
D
equal
not enough information to tell
not equal
equal
not equal
not enough information to tell
not equal
not enough information to tell
equal