Age Relationships and Problem Solving

The video tutorial explains how to solve an age-related problem involving Mona, Ray, and Joan. Mona is 12 years older than Ray, and Ray is three years younger than Joan. By using a number line, the tutorial demonstrates how to model the age differences and calculate the ages of Ray and Joan, given that Mona is 21 years old. The tutorial emphasizes the importance of visual modeling in solving such problems.

Who is 12 years older than Ray?

• Mona

• None of the above

• Joan

• Ray

How many years younger is Ray compared to Joan?

• 5 years

• 2 years

• 4 years

• 3 years

What is the recommended method to solve age-related problems?

• Using a calculator

• Asking a friend

• Sketching a number line

• Guessing

If Mona is 21 years old, how old is Ray?

• 9 years

• 12 years

• 15 years

• 18 years

What operation is used to find Ray's age from Mona's age?

• Subtraction

• Multiplication

• Addition

• Division

If Ray is 9 years old, how old is Joan?

• 9 years

• 12 years

• 10 years

• 11 years

What is the age difference between Ray and Joan?

• 4 years

• 3 years

• 2 years

• 1 year

What is the final age of Joan?

• 12 years

• 9 years

• 10 years

• 11 years

Why is modeling important in solving age problems?

• It makes the problem easier to visualize

• It is faster

• It is a requirement

• It is more accurate

What tool can help represent the relationship among different ages?

• Calculator

• Number line

• Graph

• Table