Understanding Tape Diagrams and Percentages

This video tutorial teaches sixth-grade students how to use tape diagrams to find percentages. It includes examples such as determining what percent 24 is of 32 and what percent 15 is of 25. Additionally, it applies the concept to a real-world scenario where a student calculates the percentage of a book read. The video emphasizes breaking down numbers into factors and using tape diagrams to visualize and solve percentage problems.

What is the first step in using a tape diagram to find the percentage of a number?

• Divide the whole by the part

• Multiply the part by 100

• Subtract the part from the whole

• Identify the whole and the part

In the first example, what factor is used to divide the whole and the part?

• 10

• 4

• 6

• 8

How many equal pieces is the tape diagram divided into in the first example?

• 6

• 4

• 3

• 5

In the second example, what is the factor used to divide the whole and the part?

• 3

• 4

• 5

• 6

How many pieces is the tape diagram divided into in the second example?

• 7

• 6

• 5

• 4

What percentage does 15 represent of 25 in the second example?

• 60%

• 80%

• 50%

• 70%

What percentage does 24 represent of 32 in the first example?

• 80%

• 75%

• 50%

• 60%

In the real-life example, what is the factor used to divide the whole and the part?

• 7

• 4

• 5

• 6

How many pieces is the tape diagram divided into in the real-life example?

• 10

• 11

• 9

• 8

What percentage of the book has William read?

• 75%

• 60%

• 65%

• 70%