Multiplying by Drawing Pictures in Groups

This video tutorial teaches multiplication by using drawings to represent groups. It covers key concepts such as factors, products, and the commutative property of multiplication. The tutorial includes examples like multiplying 6 * 5 and 4 * 8 using pictures, and addresses common misunderstandings. A practical example involving counting fish caught over several days is used to reinforce the concept.

What is the product of 6 and 5, and what are the numbers being multiplied called?

• Product is 11; numbers are called addends.

• Product is 30; numbers are called products.

• Product is 11; numbers are called multipliers.

• Product is 30; numbers are called factors.

How does the commutative property of multiplication affect the order of factors?

• It changes the product.

• It allows the order of factors to be switched without changing the product.

• It only applies to addition.

• It requires factors to be in ascending order.

When multiplying 4 by 8 using drawings, what is a common misunderstanding?

• That the first factor must be the groups and the second the objects.

• That the product changes when factors are switched.

• That multiplication cannot be visualized.

• That only numbers can be multiplied, not objects.

If you draw six groups of three flowers, what is the total number of flowers?

• 12 flowers

• 15 flowers

• 18 flowers

• 21 flowers

Jack caught 2 fish each day for four days. How many fish did he catch in total?

• 6 fish

• 12 fish

• 8 fish

• 10 fish