Doubling and Multiplication Strategies

Mrs. Hanley introduces the double double double strategy for multiplying by eight. She explains that this method involves doubling a number three times to achieve the same result as multiplying by eight. The strategy is demonstrated with an example problem, 7 * 8, which is broken down into 7 * 2 * 2 * 2, resulting in 56.

Who is the teacher presenting the strategy in the video?

• Mrs. Hanley

• Mrs. Smith

• Ms. Lee

• Mr. Johnson

What is the main focus of the lesson presented by Mrs. Hanley?

• Division methods

• Addition strategies

• Subtraction techniques

• Multiplication strategies

What is the 'double double double' strategy used for?

• Multiplying by 6

• Multiplying by 4

• Multiplying by 10

• Multiplying by 8

How many times do you double a number in the 'double double double' strategy?

• Four times

• Three times

• Twice

• Once

What is the result of doubling a number three times?

• Multiply by 8

• Multiply by 6

• Multiply by 10

• Multiply by 4

If you double a number once, what operation are you performing?

• Multiplying by 2

• Dividing by 2

• Subtracting 2

• Adding 2

What is the result of 2 * 2?

• 2

• 3

• 4

• 5

What is the final result of 4 * 2 in the doubling process?

• 9

• 7

• 6

• 8

What is the first step in breaking down 7 * 8 using the strategy?

• 7 * 4

• 7 * 2

• 7 * 5

• 7 * 3

What is the result of 7 * 2?

• 13

• 15

• 14

• 12