Understanding Constant of Proportionality

Understanding Constant of Proportionality

Assessment

Interactive Video

Mathematics

6th - 8th Grade

Medium

CCSS
6.RP.A.3B, 7.RP.A.2B

Standards-aligned

Created by

Sophia Harris

Used 2+ times

FREE Resource

Standards-aligned

CCSS.6.RP.A.3B
,
CCSS.7.RP.A.2B
This video tutorial introduces the concept of constant of proportionality through various word problems. It explains how to set up and solve problems using ratios and proportions, focusing on real-world examples like car mileage, map scales, and evaporation rates. The tutorial emphasizes understanding the constant of proportionality as a fixed ratio between two related quantities, regardless of the specific values involved.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the constant of proportionality in the car mileage problem if Regina can travel 180 miles on 6 gallons of gas?

35 miles per gallon

30 miles per gallon

25 miles per gallon

20 miles per gallon

Tags

CCSS.6.RP.A.3B

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If Regina uses 5 gallons of gas, how far can she travel?

200 miles

180 miles

150 miles

120 miles

Tags

CCSS.7.RP.A.2B

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the map scale problem, what is the constant of proportionality if 2 inches on the map represent 5 miles in reality?

3/5 inches per mile

4/5 inches per mile

2/5 inches per mile

1/5 inches per mile

Tags

CCSS.6.RP.A.3B

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many inches on the map represent 15 miles in reality?

4 inches

7 inches

5 inches

6 inches

Tags

CCSS.6.RP.A.3B

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For the commercial time problem, how many seconds of airtime can be purchased for $300?

80 seconds

90 seconds

70 seconds

60 seconds

Tags

CCSS.7.RP.A.2B

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the constant of proportionality in the commercial time problem?

4/10 seconds per dollar

3/10 seconds per dollar

2/10 seconds per dollar

1/10 seconds per dollar

Tags

CCSS.6.RP.A.3B

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the water evaporation problem, how many days will it take for 7 centimeters to evaporate?

26 days

24 days

30 days

28 days

Tags

CCSS.7.RP.A.2B

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