Exploring Ratios and Rates in Real-World Problems

The video tutorial covers the sixth-grade concept of ratios and rates, focusing on a problem involving a leaking barrel. The problem is solved in two ways: a detailed step-by-step method and a shortcut using ratios. The tutorial emphasizes understanding the relationship between quantities and using division and cross-multiplication to find solutions.

What is the rate at which the barrel is leaking water?

• 6 gallons every 3 days

• 5 gallons every 2 days

• 6 gallons every 2 days

• 5 gallons every 3 days

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

How many gallons does the barrel hold in total?

• 55 gallons

• 65 gallons

• 50 gallons

• 60 gallons

Tags

CCSS.3.OA.D.8

What is the first step in solving the problem using the strip diagram?

• Adding 60 and 5

• Dividing 60 by 5

• Subtracting 5 from 60

• Multiplying 60 by 5

Tags

CCSS.2.OA.A.1

How many 5-gallon chunks are there in 60 gallons?

• 10

• 11

• 13

• 12

Tags

CCSS.3.OA.A.3

Why is 12 not the correct answer for the number of days?

• Because it takes 1 day for each 5 gallons to leak out

• Because it takes 2 days for each 5 gallons to leak out

• Because it takes 4 days for each 5 gallons to leak out

• Because it takes 3 days for each 5 gallons to leak out

Tags

CCSS.6.RP.A.3B

What is the correct number of days for the barrel to empty?

• 30 days

• 33 days

• 36 days

• 39 days

Tags

CCSS.6.RP.A.3B

What is a ratio?

• A relationship between two quantities

• A method of multiplication

• A method of division

• A type of fraction

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Which of the following is NOT a way to represent a ratio?

• Using the word 'to'

• Using a colon

• Using a semicolon

• Using a fraction bar

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

What is the purpose of cross multiplication in this problem?

• To calculate the total time

• To find the rate of leakage

• To verify the number of days

• To find the total number of gallons

Tags

CCSS.7.RP.A.3

What is the final answer for the number of days it takes for the barrel to empty?

• 30 days

• 33 days

• 36 days

• 39 days

Tags

CCSS.6.RP.A.3B