In this math class video, the teacher explores multiplication by focusing on prime and composite numbers. Prime numbers are defined as numbers greater than one with only two factors: one and itself. An example given is the number seven. Composite numbers have more than two factors, such as the number eight. The teacher introduces strategies to determine if a number is prime or composite, using area and array models. For instance, the number seven can only be arranged in a single row of seven boxes, indicating it is prime. In contrast, the number eight can be arranged in multiple ways, showing it is composite. The video concludes with a summary of the differences between prime and composite numbers.

What is the main topic introduced in this math class?

• Geometry and shapes

• Prime and composite numbers

• Fractions and decimals

• Addition and subtraction

Which of the following is a characteristic of a prime number?

• It is an even number

• It is a multiple of ten

• It has more than two factors

• It has exactly two factors

Which number is given as an example of a prime number?

• Eight

• Four

• Seven

• Ten

What defines a composite number?

• A number with only one factor

• A number that is a square

• A number with exactly two factors

• A number with more than two factors

Which number is used as an example of a composite number?

• Five

• Eight

• Three

• Seven

What is one strategy mentioned for identifying prime and composite numbers?

• Using area and array models

• Using a number line

• Using a multiplication table

• Using a calculator

How can an array model help identify a prime number?

• By showing only one row or column

• By showing a circle

• By showing a triangle

• By showing multiple rows and columns

What array can be made for the number seven?

• 2 * 3

• 3 * 3

• 4 * 2

• 7 * 1

How many different arrays can be made for the number eight?

• One

• Two

• Three

• Four

Which array is NOT possible for the number eight?

• 8 * 1

• 2 * 4

• 4 * 2

• 3 * 3