Exploring TEK 4.5A Strip Diagrams

This video tutorial introduces strip diagrams as a tool for solving multi-step problems with whole numbers. It covers the learning goals, real-world applications, and key vocabulary such as expressions, equations, and variables. The tutorial explains different types of strip diagrams and provides a problem-solving strategy using these diagrams. Several example problems are worked through to demonstrate the application of strip diagrams in estimating and solving real-world problems.

What is the main purpose of using strip diagrams in problem-solving?

• To make problems more complex

• To visualize number relationships

• To replace equations

• To avoid using variables

Which of the following is a mathematical phrase without an equal sign?

• Variable

• Expression

• Strip Diagram

• Equation

In an equation, what does the equal sign represent?

• A total

• Equality between two quantities

• A missing value

• A variable

What type of strip diagram is used when the total is unknown?

• Variable unknown

• Parts unknown

• Total unknown

• Difference unknown

If a problem states that there are equal parts or groups, which operation is likely needed?

• Subtraction

• Division

• Addition

• Multiplication

In the example where Michelle wants roller skates, what does the variable 'r' represent?

• The number of roller skates

• The difference in money needed

• The amount of money Michelle has

• The total cost of the roller skates

What is the first step in the problem-solving strategy using strip diagrams?

• Solve the equation

• Write an answer sentence

• Draw a strip diagram

• Check the answer

In the problem where Alana's family is driving to Disneyland, what does the variable 'm' represent?

• Miles driven on the first day

• Miles left to drive

• Total miles driven

• Miles driven on the second day

How many tickets does Harry need to buy for himself and his five friends?

• 12

• 5

• 6

• 7

In the example with Leanne's cookies, how many peanut butter cookies did she bake if there were 8 more sugar cookies?

• 14

• 18

• 22

• 28