Doubles Strategy in Addition

The video tutorial focuses on teaching first graders about doubles facts and how they can be used to simplify addition problems. It introduces the concepts of doubles plus one and doubles minus one, providing examples and practice problems. The teacher emphasizes the importance of using strategies that work best for each student and encourages them to practice with flashcards and other methods. The lesson also highlights the flexibility of using different numbers as doubles to solve problems effectively.

Why are doubles facts important in solving math problems?

• They are not important.

• They are only used in multiplication.

• They help in understanding subtraction.

• They make calculations faster.

What is the result of 3 plus 3?

• 5

• 6

• 8

• 7

What strategy can be used when numbers are close together?

• Neither

• Doubles minus one

• Doubles plus one

• Both doubles plus one and minus one

If 4 plus 4 equals 8, what is 4 plus 5?

• 11

• 10

• 9

• 8

How do you solve 2 plus 3 using doubles?

• Add 3 plus 3 and then subtract 1

• Add 2 plus 2 and then add 1

• Add 2 plus 2 and then subtract 1

• Add 3 plus 3 and then add 1

Which number can be doubled in the problem 8 plus 9?

• 8

• 9

• Neither

• Both 8 and 9

What should you do if the doubles strategy is challenging?

• Use a different strategy that works for you

• Give up

• Ask someone else to solve it

• Keep trying the same strategy