Modeling Percentages with Grids and Tape Diagrams

The video tutorial by Todd at Linda Math focuses on teaching percentages, a challenging concept for many students. It covers modeling percentages using 10x10 grids and tape diagrams, providing step-by-step examples for various percentage problems, including those over 100%. The tutorial also offers additional resources for further learning.

What is a common tool mentioned for modeling percentages?

• Pie charts

• Bar graphs

• Algebraic expressions

• 10 by 10 grid

Where can additional resources on percentages be found as mentioned in the video?

• Online courses

• Local library

• Amazon and Teachers Pay Teachers

• Bookstore

How many squares would you shade to show 41% on a 10 by 10 grid?

• 4 squares

• 100 squares

• 41 squares

• 10 squares

What does a full 10 by 10 grid represent in terms of percentage?

• 10%

• 50%

• 100%

• 1000%

In a tape diagram, if the whole amount is 80, what does each section represent when divided into five parts?

• 20%

• 5%

• 16%

• 20%

What percentage of 60 is represented by 15 in a tape diagram?

• 60%

• 10%

• 15%

• 25%

If you need to find 45% of 160 using a tape diagram, how many sections would you initially divide the diagram into?

• Ten sections

• Eight sections

• Four sections

• Five sections

What is 120% of 40 according to the tape diagram method?

• 120

• 80

• 48

• 40

What does 125% of 50 equal when using a tape diagram divided into sections of 25%?

• 40

• 50

• 125

• 60

In the context of percentages, what does the number 8 represent when it is part of 32?

• 32%

• 12.5%

• 8%

• 25%